Bacterial Infection Goldfish

Frequently Asked Questions

    Goldfish Bacterial Infection?
    My fish developed an ulcer some time ago. I treated with MELAFIX and he healed up rapidly.

    Then two days after the treatment, another ulcer appeared. I treated with a different antibacterial treatment. I just finished the new treatment, the ulcer healed, but my fish still seems sick (floaty listless clamped)

    The water perameters are perfect, my tank is not over stocked, and the other fish are very healthy.

    Why can't I seem to make him well???
    I have been feeding medicated food throughout. Great suggestions though. I was thinking last night..Could it be costia?

    • ANSWER:
      Could be an internal infection. While Melafix helps keeps wounds from becoming infected, it does little to cure existing infections.

      If it is an internal infection, medicated food would be your best bet.. However, anyone who has had sick fish knows that getting a sick fish to eat can be extremely hard!

      Some medications do not work well with water that's above 7.5 pH. Tetracycline and Minocycline are like this. They are found in Maracyn Two, and Maracyn TC. The reason this is true is because they bond to calcium and become inactive. If your water's pH is greater than 7.5 Kanamyacin may be your best bet.

      Personaly, I like Doxycycline Hydrochloride for treating fish in hard water. It's derived from Tetracycline and has the same broad spectrum, but does not bond to calcium so it can be used in hard water. I get mine from

      They also sell a host of other products.. but by the sound of it, you need good, strong antibiotics that won't be deactivated by hard water.

      If your water is softer and below a 7.5 pH, try Minocycline if Kanamyacin isn't available in your area. It's absorbed through the skin easier than tetracycline and has the reduced risk of complications when treating your fish that has kidney problems... and kidney problems often occur with internal bacterial infections.

    what is happening to my goldfish?
    i have a 75litre aquarium with 2 small comets and 1 small fantail, recently i noticed one of the comets is behaving strangely, he will either lay at bottom of tank or top and not move and likes to hide away doing nothing or he swims about irradically, he also now has fins flat against body and showing red at base of fins. the other 2 fish are fine and happy so what could be wrong?

    • ANSWER:
      He has a bacterial infection and needs treatment asap. Goldfish are EXCEPTIONALLY messy fish, they really need at least 70-100 litres each and won't stay small for long! It may well be that this Goldfish is more sickly than the other two, hence it first becoming sick.

      Test your water, you should always have 0 ammonia, 0 nitrite and under 20ppm nitrate, anything deviating from that can harm your fish. Ammonia in particular will dissolve gill tissue. Do a large partial water change and treat with a good anti-bacterial medication (not Melafix). Plan a near-future tank upgrade!

    Is it absolutely necessary to use a hospital tank while treating goldfish for bacterial infections?
    Today, my girlfriend and I were shocked to find our two goldfish with fin rot and cloudy eyes, barely moving in their 20 gallon tank. You could imagine what we did and how we felt about it. I bought ampicillin (liquid form) and squeezed many drops in the acquarium (more than prescribed because one of the goldfish were not eating it. I also added a lot of salt and replaced the filter. I heard that certain medications kill a lot of good bacteria the fish needs. Did I mess up by not doing all this in a separate hospital tank? My goldfish seem to be doing fine immediately after the medication, which is so surprising. What should I do?

    • ANSWER:
      The purpose of a hospital tank is to isolate the infected fish from the healthy fish, and to administer high concentrations of medication that might be dangerous for healthy fish.

      It is not absolutely necessary in most cases, but it would depend on your situation. I would medicate in the main tank anyway as a means of prevention to protect the healthy fish. If the fish are in that bad a shape, it is likely the infection is already spreading to the other fish.

      The fish should not need to "eat" the medication. It simply needs to be introduced to the water column, where it will disperse on it's own. I would not over-medicate the fish, as it could be dangerous them. More is not always a good thing.

      You could try a salt bath or salt dip. There are instructions here - - These methods expose the fish to extremely high concentrations of salt for a brief period. Since salt is very toxic to most bacteria and parasites, the idea is that these high concentrations of salt will kill off the infection quickly and allow the fish's immune system to recover. But they are stressful for the fish, so follow the instructions carefully. Make sure salt levels in your aquarium are not beyond what is recommended on the box...goldfish are not marine animals, and cannot tolerate high levels of salt for long periods. Keep the high concentrations of salt confined to baths and dips, not the main tank.

      If you have not already done so, raise the temperature to the 72F to 80F range and keep it there. This will also augment the fish's immune system. If you do water changes, make sure it will not interfere with your medication cycle. You dont want to be diluting the medication with water changes. If you have carbon filters, make sure you remove them during the medication cycle.

      None of the medications I am aware of will harm your biological filter (the benign bacteria colony in your tank). The only thing that will do that is Chlorine. You can rinse out filter media with normal water so long as you make sure it is dechlorinated first.

    treating bacterial infection in goldfish?
    i was just wondering when treating a goldfish for a bacterial infection, is it best to get them out of the tank into safe tap water, or is it too much of a shock for them? do i need to strip the entire tank? any help would be very much appreciated!!

    • ANSWER:
      What are you treating your fish for? Treating with an antibacterial should treat the entire tank not just one fish. No need to move to another tank or you may soon find yourself removing all your fish.

      Are you using a liquid or are you using treated food? To keep transfering fish from place to place add additional stress on an already ill fish. Treat the entire tank.

    Goldfish pox such thing?
    my fish has a red spot on top of its mouth i have ywo in a bowl for about 1 1/3 years so what is it and is it dangerous and forgot to metion it jumped out the bowl once but i put it back in

    • ANSWER:
      Possibly a bacterial infection sore, after not dying in a deathtrap for 1.3 years its surprising that fish has any sort of an immune system left.

      Goldfish do not belong in bowls, they are fish that should grow large and are heavy waste producers.
      Fancy goldfish need 20 gallons for the first and 10 for each additional.
      Common/comet/shubunkin goldfish need 50 gallons each.
      Each with filtration rated for twice the tank size.'

      I guess your fish tried suffocating rather than being burned by its toxic waste (ammonia) 24/7...

    Um i think one of my goldfish has a bacterial infection what can i do?
    His poop is white and stringy and has been hanging off his butt for pretty much all day. I do a partial water cahnge every day and whole water change every 3 days what can i do!!!? WILL HE DIE!? :'(

    • ANSWER:
      A bacterial infection would usually be accompanied by some other symptom like redness, not eating or lethargy.

      I'm guessing a more likely cause in this case is stress from the water changes or poor water quality in general. You say one of your goldfish, how big is your tank, is it cycled and why do you do a whole water change?

      While partial water changes are essential to maintaining water quality a 100% change is never a good idea.

    question about bacterial infections in goldfish?
    have been treating a goldfish for an internal bacteria with a pet store bought treatment, Interpet Anti Internal Bacteria, shes doing pretty bad at the moment and I have heard you can get antibiotics but I just wondered A) is it ok to use with this treatment or B) is that an antibiotic in itself? so i dont need to but anything else??

    • ANSWER:
      My first question would be what are you treating for?

      There is a thing as to over medicating your fish. Use a water antibacterial or an internal one not both. Yes it is an antibiotic.

      If she has not cleared up what do you think she has?

      Feel free to email

    is there such a thing to treat dropsy in goldfish with a bacterial infection medicine?
    or is there another way , but with home remedies?

    • ANSWER:

      Dropsy is a hard to treat illness. And very commonly deadly. There are no home remedies. Here is a extract from on dropsy .

      A very deadly one . The goldfish will look swollen and its scales will stick up like a pine cone . There are not many things that can be done . If caught early treat with parasites and bacterial infection medicine again available at a fish store. If that does not help try to make the fish comfortable as chances is its going to die.

      Chances are its going to pass away but you can extend its life with bacterial infection medicine.

      Good luck I know it might be hard to deal with .

      For more imformation on goldfish feel free to visit

      All The best

    Sick goldfish help??
    Last week I bought a mate for my goldfish, I picked what I thought was a healthy fish, I bought her on the thursday and she died on the monday, i noticed kinda like the day after i got her or maybe the next a funny colour on the top of her head, then the day before she died her body was starting to look a little funny, when she died the colour on her head had gotten worse and shed obviously had some internal bleeding or something, i did a semi-clean of the tank and put some safe tap water in, incase there was anything in the tank that might harm my other fish, but now my other fish has some red on her side im scared shes got the same thing, should i get her out of the tank or is it safer to leave her? I dont understand what went wrong with the other fish, i left her in the bag in the tank to get her adjusted to the tank temp and put small amounts of water in bag to get her adjusted to pH and made sure only a small amount of the water from the bag went into the tank, i just dont know what to do for the best, any help would be great! sorry for the long question!

    • ANSWER:
      Sounds like Bacterial Infection to me. Whenever purchasing the new fish look at the condition of the tank and other fish in it, look for the warning signs in the tank. Fish deaseses spread and might not be visble until it's too late.
      Bacterial diseases are usually the result of unsanitary tanks, cold water, over-crowding, corn-based diets, or parasite infestation. There are several forms of bacterial infections that can infect your fish. Many times the symptoms of bacterial disease can be visible on the fish. Such common diseases are Fin Rot, Ulcers, and Dropsy. Other bacterial infections are impossible to distinguish without running laboratory tests. It is not necessary to identify the specifics before you can treat the fish. To help prevent this maintain proper water conditions. Symptoms: Cloudy eyes, open sores on the body, abscesses, inflammation of the skin(reddening), fins or internal organs. Bulging eyes may be present or possibly rapid breathing. Treatment: A fish infected with a bacterial disease should be treated in a separate tank( if possible). The best medicine is a broad spectrum gram negative antibiotic such as furan, kanamycin sulfate, or spectrogram. There are other possible treatments. See your local pet store.
      I would do a 30% or more of water change in your tank preferably with water not directly from the tap, as tap water can contain chlorine or be too hard, you can purchase some aquarium water from petsmart or petco online, or get some water conditioner. Also you might want to look into geting some aquarium salt.
      If you want more info on bacterial infections on fish just google it.

    I think my Goldfish have a bacterial infection. I have 4 goldfish in a 200 ltr tank.?
    One has a swollen body, one side looks slightly worse than the other, and the remaining 3 have red streaks in their tail fins but no swelling. I've heard this is a sign of internal bleeding. Does anyone know of a decent bacterial treatment available in the UK?. Something that has worked for these symptoms in your own fish preferably.

    • ANSWER:
      This website is a good resource for you:

      Can you get Maracyn, Maracyn Two or Kanacyn where you are? You might try Myxazin.

      Although it sounds like you have enough water volume in the tank, you need to do 30% weekly water changes on goldfish and keep track of the water parameters. Bacterial infections are virtually always caused by water quality issues from high ammonia and nitrites. I'd recommend adding some aquarium salt per the package recommendations for goldfish as a tonic.

      Here's another possibility-- hermorrhagic septicemia: still needs Maracyn-2:

      Hope your fish get better soon!

    Are My Goldfish Sick?
    I just treated my tank for high levels of ammonia and now 2 out of 3 goldfish are pooping out white long stringy poop with a bubble in it. I feed them 3 times a day. Very small amounts since I was over feeding them.

    Also, I started treating the tank 5 days ago and cut back on their feeding at the same time. Why is this happening now?

    Otherwise they look healthy to me.
    I feed them Nutrafin Max goldfish flakes. If they do have internal parasites how do I treat that?

    • ANSWER:
      The poop is a sign of an internal bacterial infection (usually). The best method of treatment is to order some Metro-Med food from Goldfish Connection, or use Metro+ as a food additive. To use the Metro+, get some Repashy gel food mix. Make a batch and weigh it before it sets. Add 1% of that weight in Metro as it cools. Stir fast. Feed 1% of the fish's weight in the medicated food, daily. Go for 10 days and re-evaluate. The meds are very gentle on the fish.

      It could also be flukes, a very common parasite that is always present in the tank. They wait until the fish's immune systems are compromised (ammoni in the water) and then they attack. Very easily treated with Prazipro. I do my guys every year regardless of illness. I also Prazii every fish that comes into my house while in quarantine:)

      This was most likely caused by the ammonia, which creates bacteria if left too long. Step up your maintenance. You water has to be pristine for the fish to get better. It will just keep happening. You said you "treated for ammonia". The only way to do this is to do 50% water changes daily until it resolves. Additives won't do the trick.

      Don't feed flakes, the fish suck in air at the surface, which contributes to swim bladder issues. Feed sinking pellets that have been pre-soaked in tank water for a couple of minutes.

      edit: air bubbles in the poop is a sign of sucking too much air or gas bubble disease. Make sure there are no microbubbles before adding fish to the tank after a water change. Do this by aging the water with an air pump. The more you "beat up" the water, the faster the gases witll acclimate. Changing to sinking pellts will help as well:)

      Good luck!

    How do I treat a Bacterial infection and a Fungal infection on Goldfish, at the same time?
    One fish has Columnaris and the other has Fin and Tail rot starting. How do I treat both of these together?

    • ANSWER:
      Columnaris is a bacterial infection in itself, so treat for bacterial problems. Columnaris however is usually fatal, see here:

      Both can be triggered by poor water quality, so make sure that isn't causing it to get worse too.

    goldfish with dropsy?
    i have had this common goldfish for a while and he's gotten quite big (2 or 3 inches)! i didnt expect him to last this long (4 or 5 years) since i won him as a prize from a fair, so ive become attached to this poor guy. i believe he has dropsy since he's got pineconed scales but it's mostly by his head right after the gills and doesn't really pinecone on his body. i think his scales are starting to pinecone on his abdomen, but just on one side. a week or 2 weeks ago he had a pretty bad constipation problem, and ive heard dropsy can be caused by constipation. i put him in a gallon hospital tank but only filled it up half way because i put maracyn 2 in and it decreases the oxygen level i heard. i added a little bit of kosher salt because i heard salt can help with dropsy. now he's kind of gasping and i dont know what to do because i cant change the water with maracyn 2 in there and i dont have a pump to make bubbles. im beginning to think he doesnt need the maracyn 2 since i think it's just constipation but he pooped the peas out so i dont know what to do anymore! i dont want him to die and i desperately need help or advice that will save my poor goldfish. please and thank you :)

    • ANSWER:
      Dropsy is a bacterial infection of the kidneys, it is not constipation. It causes a fluid build up in the body cavity because the kidneys are not functioning properly. The body swells with the fluid and the scales are forced to stand out as you see.

      Usually it is caused by poor tank/water conditions and it typically affects weakened fish that have not had a good diet and tank maintenance (weekly partial water changes and removal of waste).

      Treatment is with an antibiotic, usually added to the food so it is taken into the body. Tetracyline or chloromycetin are the two best meds for this. One or the other is typically always available at the local fish store (LFS). Sometimes it is just added to the water in the hospital tank. Be sure to follow the directions on the medication label.

      It sounds like you are catching it early if all of the scales are not pineconed out yet. I would remove the Maracyn 2 and start dosing him with one of those antibiotics right away. You may be able to save him.


    Is my goldfish pregnant?
    Well it has been established that my goldfish is sick and has red streaks on her fin which indicates that she has bacterial infection and shes always on the bottom of the tank and isnt eating much. But is she also pregnant? She seems to have a big belly and the male fish i have is always following her around and nudging at her. I am currently giving her medicine for her infection but im not sure if she'll make it. if it is apparent that my fish is pregnant what do the eggs look like... please help me!!

    • ANSWER:
      It is possible she is pregnant, but it could be possible that this bacterial infection could be making her bloated.

      I assume you have Fancy Goldfish, as their bodies are just naturally fatter and shorter than pond Goldfish such as Shubunkins/Koi/Comets. Look at your male, does he have little white dots on his gills, and possibly some on the tips of his fins? When breeding, male Goldfish get these tubercles that look like white pimples that accumulate there. Now look at his tail, and underneath it a bit just at his anus. This is called his "vent." Females have it too, but on males', it is teardrop-shaped, and it goes in more than being flat.
      Look at your female now. You said she had a big belly, and is also sick, but, if you look at her vent, located in the same place as the males', does hers stick out a bit, and is smaller than the males? If so, then you have a female.

      If this is all happening, then they are probably trying to breed, but aren't necessarily going to do it, as a Goldfish's spawning season is spring. They are probably just getting ready for it.

      If your male is bumping into your female why she is sitting on the bottom of the tank, you may want to separate them, as he could really injure her.

      Good luck!

      EDIT: The eggs of Goldfish are very small, about 1/4th the size of a penny. The female grows to be very bloated with eggs, and the male will be non-stop chasing her around the tank. You will also see that the fish will do this for hours before the female gets tired, and sprays the eggs all over the tank. The male will then circle the tank, fertilizing them all. The whole process starting from the chase takes about 4-5 hours. Goldfish will eat everything in front of them, so be careful, if you want to raise the fry, you should take the eggs out, once the male has fertilized them.

    Goldfish dead after bacterial infection, only one survives. How can I ensure its survival?
    I have 4 goldfish. 3 have died from bacteria infection, all have had red streaks and swam lopsided. They sat at the bottom of the tank for a week or two. After giving MeloFix, my 4th fish has survived but it still sits at the bottom, after replacing 25% of the water.
    I use tap water with some yellow bottle, forgot the name, that neutralizes chlorine etc so it creates safe water for fish. Is there something wrong with the water? I am adding the right amount of everything. It seems though that there might be bacteria in my water?
    Melofix is an antibacterial for fish tanks. I changed 25% of the water after treatment began, as indicated on the MeloFix bottle

    • ANSWER:
      It is important to remember that pathogenic bacteria are always present in our water and on our fish. They are a problem only when the fish are weakened by poor water quality or parasite infestations. So, before attempting to treat a bacterial infection, be sure that you correct any underlying problems first. Symptoms can include fin and tail erosion and fraying, redness of the tail, pectoral or anal fins, and red open sores (ulcer disease). The most effective remedy for most bacterial infections is feeding medicated food containing tetracycline, romet, or oxolinic acid for 10-14 days.

    Quick Question About One Of My Goldfish?
    One of my 3 new(ish) goldfish has been pooping white strings. I didn't pay much attention, but I was cruising a fish site, and they mentioned that can be bad, so now I'm worried. He's active, and eats fine. All my other goldies eat the same thing, and I havn't noticed them doing it. He's about 1-1.75'' long. Probably male. Thanks :)
    Rebecca: Makes sense XD I do daily ones with a gravel vacuum, so I get any poop ( tank is bare ). He's been doing it since I bought him ( 1-2 weeks ago ) and hasn't changed much, unless you could looking happier, eating, and getting more active XD I don't have another tank right now, but he seems to be the only one. Now that I know it's bad, I'm going to keep an eye out

    • ANSWER:
      White poop means 3 things:
      1. Bacterial Infection - You'll see red spots or streaks
      2. Parasite - Spits out food a lot, hooks out the mouth
      3. Bad Diet, could lead to constipation.

      I honestly don't think its bacterial or internal parasite, you would see hook worms, lumps, etcetera and ammonia burns, reddening gills with bacterial.

      Goldfish need a lot of plant matter in their diet, flake food, is a base. Try feeding your goldfish a variety diet. Think parboiled green vegetables (Shelled peas, zucchini, squash, cucumber, romane lettuce that kind) and try to avoid feeding flakes all the time.

      I have some old, old pond goldfish, a 9 year old fancy, a couple of 10-12 year comets, and feed them goldfish "pellets" but 2x out of a week I parboiled some shelled peas and dump the microwavable bag, once lukewarm, into the pond. They go crazy!

      I do this because they do get white poop if I begin to get lazy on the peas because of the protein in the pellets and the water bugs and mosquito's they catch.

      Hope this helps.

    What's wrong with my telescope goldfishes??
    My telescope goldfishes eyes turned blurry, and its scale changed color, they don't eat nor swims with the rest because they can't see, one of them died already, whats wrong with them, why is this happening???

    • ANSWER:
      bacterial infection, almost always caused by poor water condition. how many goldfish do you have and what size is your tank?

      do a 50% water change, in the new water dissolve 1tbspoon of aquarium salt per 5g of water in the tank and a broad spectrum antibiotic from your pet store. remember to remove the carbon from your filter before treating.

    Clouded over eyes on my goldfish?
    He is about 5 years old

    • ANSWER:
      Your goldfish might have a bacterial infection that is called cloudy eye. It is characterized by either one or both eyes becoming cloudy or having a whiteish appearance. It is easily treatable with good water quaility, medication and sometimes addition salt to your tank. Just go to your local pet store and ask. They generally can help.

    Cotton thing on goldfish?
    Ok, I have a small black moor goldfish, and I noticed this cotton like growth thing near his dorsal fin. It's white, and he has had it for about two weeks now. It doesn't really seem to be affecting him that much, he still swims around and eats, and occasionally just floats around, but other than that I can see nothing wrong with him. It looks sort of like a fungus to me, I am going to change his water tonight, and I was wondering if I could just carefully scrape it off with a cotton swab or something. Serious answers please.
    And yes, there is one other goldfish, but she doesn't show any signs of the cotton thing.

    • ANSWER:
      Sounds like a fungal or bacterial infection. Instead of scraping your fish, you should go to your local pet store, they sell anti-fungal and antibacterial treatments for fish that you just dissolve in their water. The boxes for the treatments will explain what kind of infections they are effective against and will have some descriptive pictures so that you will know you're using the right thing.

    Help my goldfish.s eyes?
    i have a goldfish in a 20 gallon community tank with other 4 fishrs today morning when i went to feed my fishes something white liquid was comming out from my goldfish,s eyes from one eye it was comming more what is it is it any infection what can i do please help and he was acting little strange it was swimming alone usually it would swim wit other fishes and not eating

    • ANSWER:
      it's a bacterial infection of some sort. go get a broad spectrum antibiotic, tetracyline is good if you can find it.

      buuut, this is probably cause by poor water conditions. goldfish need a bare minimum of 10gallons each, preferably 20g. if you have for fish in there you and goldfish should really only be kept with goldfish, you're WAY over stocked. you will keep having problems until you cut back on the number of fish in your tank.

    Could my goldfish have a bacterial infection?
    We have two goldfish, a ornamental fantail and a telescope eye. I think they both have bacterial infections. I think sometime overnight the tank was unplugged and the filter stopped working. Tonight the fantail started floating upside down. I think he has swim bladder disease. He is swollen and can't swim upright, but seems to be breathing. We tried to feed him some mashed peas, but he wouldn't eat him. We have separated the two fish and have the fantail in a large bowl. The other guy, Basket, has a protruding eye on the right side. He is a telescope eye goldfish, but the eye seems to be protruding even more than normal and I noticed a "skin" like film over the eye. Is it possible that the two bacterial infections are related? Is there any type of antibacterial medicine to give them? Should we keep them separate or put them back together? These may just be goldfish, but my 4 year old has dealt with the death of 3 other goldfish and a puppy. I can't bear to break this news to her! Please help, we are desperate!!!!

    • ANSWER:

    My fish keep dying of a bacterial infection????
    I have gone through three fish so far. The first two were together and they were goldfish. I have a 1.7 gallon tank with a filter/aeration aparatus. The tank has three small plastic plants and one small cloth plant. When I finally noticed they were sick was when I noticed brown spots and holes on their fins. I looked online and found that they could have a bacterial infection. Unfortunately it was too late and both of the fish died on the same day. Round two: I get another goldfish by herself. Same tank, only we bought one fake rock house for her. (We were told this would help if there was any stress.) We cleaned the tank thoroughly before putting her in and I fed her a pinch of food twice a day. Then I started noticing fraying on the edges of her tail and holes, we bought antibacterial fish meds(erythromycin) and went through the whole procedure. She showed no signs of improvement and died after a couple weeks. Now I have a betta and I have noticed the same frayed tail fins and holes.

    • ANSWER:
      Your fish aren't dying from bacterial infections, they're dying of ammonia poisoning. A 1.7 gallon tank is MUCH too small for any fish, especially goldfish.

      Goldfish get very large and need huge tanks. A fancy goldfish needs 15-20 gallons *per fish*, and a single-tailed goldfish needs 50+ gallons *per fish*. That's why they're meant to be put in ponds. They also produce a lot of waste, which means ammonia builds up quickly in their tanks. Tiny tanks like the one you have are essentially fish death traps.

      The fin fraying you're seeing is called finrot. It happens when water gets dirty, which is undoubtedly the case with your tank since the ammonia buildup would happen so rapidly. To treat it, you need to keep the water pristine and warm. You can also add a pinch of aquarium salt. If that doesn't help, you'd have to get finrot specific medications.

      Bettas need a heater, since they're tropical fish. They also should never be kept in in anything below 2.5 gallons.

      Return your betta and get an african dwarf frog if you must keep something in your tank.

    my goldfish is dying! It has red around head and fins?
    When we came back from holiday I noticed that my goldfich was red around the fins and gills but was still happy enough. But since then it has got worse and the red (blood?) has spread to his head and now he is dying, first swam at the top of the tank but is now gulping for air at the bottom on its side. I left a fish feeder in the tank while we were away, could that have caused his illness? is there anyting i can do?
    Its is in a tank with a water filter and one other gold fish. The other goldfish is perfectly healthy.

    • ANSWER:
      It's a bacterial infection called hemorrhagic septicemia.
      It's common to goldfish AND IT IS DEADLY IF NOT TREATED!!!!

      Your fish probably got it from being in poor water. They need lots of room, good filtration and airation, and regular water changes. Poor water stresses them out and leaves fish open to bacterial attacks.

      now that your fish has this, and it WILL spread and kill.
      The treatment is
      1. Do DAILY water changes at least through treatment.
      2. get some antibiotics ASAP. One called Maracyn is effective on this disease.

      Get enough to treat every day FOR A FULL WEEK!!!!
      I cannot stress this enough.
      If you stop treating because the fish looks better, the disease will bounce back and this time not be curable.

      This medication will cloud the water a bit. That's to be expected. Do your water change, 10-20% THEN dose. Every day.
      If you caught this on time, it will clear. I've seen goldfish with deep open wounds manage to heal.

    I think my fish has dropsy?
    My goldfish, tango, is my favourite fish and the one I've had longest. I recently noticed he was getting bigger, my first assumption was that maybe "he" was pregnant. There is 10 other fish in the tank (2 of which are goldfish) and they have not been effected. Tango I also noticed was not eating, in my ignorance I assumed this was a consequence of being pregnant and I decided to continue for about 3 or 4 days. About an hour ago I saw tango's scale were pointing outwards (like a pinecone) and I remember reading a fish booklet on fish diseases and now I'm almost 100% sure he has dropsy. I cannot get an proffessional advice for a few days or treatment, nor do I want to euthanize the fish. I love this fish and I want to know what I can do to save him.
    Thank you :)

    • ANSWER:
      Dropsy is an internal bacterial infection and you need to treat the goldfish with an anti internal bacterial med.

      The Dropsy could have been directly caused by an internal bacterial infection, but more than often there is a more route cause of the infection, such as poor water quality & over-feeding.

      One the fishes scales have pineconed its chances of survival are slim for the bloating causes great damage to the fishes internal organs. On the plus side though, Dropsy is generally not very contagious.

      Goldfish do not get pregnant- they can become laden with eggs, but there are ways to gender ID goldfish before they even mature and in the future you should certainly not overlook any sudden changes in your goldfish (whether physical or behavioral).
      A healthy goldfish should be active, inquisitive and slim. Behavioral symptoms like inactive/listless behavior, rapid/laboured breathing, skittish behavior etc are all signs that the water quality is not good in the tank.

      When treating your goldfish for Dropsy, apart from using an anti internal bacterial med, you should ensure that water quality is kept extremely good (doing regular small water changes with dechlorinator), ensure the tank is well aerated from the filter and that the goldfish are moved onto a more veg based diet (for the Dropsy afflicted fish will find it difficult to digest right now, and its internal infection may have even been caused by food rotting in its stomach due to over-feeding in the first place).
      NEVER use salt when treating any fish with Dropsy.

    Sick Goldfish????
    I have a 29 gallon tank with a 55 gallon external power filter, air bubbler, 2" natural colored gravel, rock hideouts, and plastic plants. It has 3 2" fantail goldfish currantly, from nose to tip of tail. I just tested the water and it was very acidic and alklanik. I added some buffers and did a 25 percent water change. It had zero nitrite, but a caution level nitrate. I found a water/cleaner soaked wash cloths on top of my filter box, and suddenly my one/ maybe two fish are sick. The first being my smallest fish Claire. She has not developed a pot belly shape yet and has been hovering at the surface of the tank for a few days now, but has had a normal appetite. They get fed twice a day with tetra goldfish flakes. Her fins are sometimes clamped and she has developed some red spots on her stomach. The bigger one is on the right size and is a about a circular cm wide/big. The scales in that spot are a light gold/white and are rimmed with red. When her fins are near her body they appear
    bright red, but they actually are normal looking and normal coloration. On the left side there is a half sized red circle right behind her fins also. I don't know if it is just me or not, but her head seems to have a reddish tint. The other fish I am questioning illness is Charlie. He is calico colored and his pupil on his left size looks a tad bit bigger than his right pupil. Also, when I got him about a month ago, behind his gill covers was pinkish on one side. Now it seems pinkish on the other side. I was wondering if this was just normal or does he have some other type of illness. He also has a normal appettite but has a more noticeable pot belly. The other goldfish Kate seems healthy but has a much bigger pot belly then the other two. Her scales aren't protuding, and otherwise she looks healthy so I don't think she has dropsy. So the main question is whatr is wrong woth my goldies? Does Charlie have pop eye? Also, I don't have an isolation tank big enough for sick goldfish so
    can I treat the in the same tank?
    Thanks So Much In Advance!!!!!
    Thanks mm, currently they are being treated with Maradel Tetracylin and medicated bacteria fish food.

    • ANSWER:
      This really sounds like a blood borne bacterial infection to be honest. I would suggest you treat using two things:

      First, use a medicated fish food for bacterial infections. It's available at all better pet stores and chain stores.

      Second, you need to treat with a good antibiotic. Furanace or Furan 2 would be my first choices for this, but if you can't find either of those, treat with tetracycline (like Maracyn TC). Just treat as directed on the package.

      And yes, treat them directly in the tank.


    My Goldfish had Anchor Worms, how do I prevent a bacterial infection from the open sores?
    My large Gold Fish has Anchor Worms right now and is undergoing treatment with Permoxyn Potassium Permanganate. What should I treat the water with to prevent him from getting a bacterial infection from the open sores left by the Anchor Worms?


    • ANSWER:
      Potassium permanganate is also very effective at killing bacteria, so that alone will prevent secondary infections. If you're only using the Permoxyn as a dip, and wish to prevent infection in the holding tank, one mL of methylene blue (2.303%) per two gallons of water is very effective, and will also aid the fish in respiration, as it helps to oxidize hemoglobin in the blood. Activated carbon should be remove from the filter during treatment.

      Salt and Melafix, Bettafix, or Pimafix will not actually kill any bacteria, but irritate the fish into producing extra mucus that will make it difficult for the bacteria to infect. A combination of frequent water changes, about a teaspoon of salt (contrary to popular belief, even iodized table salt is VERY safe) per 5 gallons, and some methylene blue would be great, but if the fish is constantly in potassium permanganate, that's all unnecessary.

    my goldfish has a lump on her side . what do i do?
    just recently i noticed that one of my goldfish has a lump on her side , which seems to be growing even more everyday from the inside. her scalesalos seem to be scatched off and it looks as if she is bleeding. there are 5 more fish in the tank with her and they are all fine except for her.

    i have also noticed that she sometimes swims lopsided and spends most of time at the top of the fish tank, she only goes back down when its night time.

    the lump is gradually getting bigger every day. is this some kind of illness?

    • ANSWER:
      It is a serious bacterial infection, she needs to be isolated and treated, although for it to get to this stage there isnt much you can do. Bacterial infections can affect their swim bladders, which is why she is swimming lopsided. Pop her into an isolation tank, and any pet shop will sell a bacterial infection treatment, treat her as soon as you possibly can. Also treat the others, just in case they pick up the infection. If you do not remove her, pretty soon the other fish will start to pick on her, as they always try to kill any weak fish, so to prevent infection among the rest. This will be an agonising death for her. Or, if you want to put her to sleep, the most humane method is to take her out of the water, get a knife, and cut sharply and quickly just behind the back of the head. This will sever the spinal cord and the fish will die instantly. Sorry to be morbid, but I've seen this hundreds of times, and by the time it is at this stage, it's pretty hard to treat as the bacteria has really taken a hold on the fish and caused the horrible bleeding ulcer.

      Afterwards, you need to work out the cause of the problem, because if it is a water problem, the other fish will get it anyway. Always treat the cause as well as the symptoms. Do a water test, see what your ammonia and nitrite is like. Poor water quality lowers their immune system so they are more likely to get infections and diseases.
      It could also be that there is something sharp in the tank that the fish has rubbed against, which would scratch the scales away and let the bacteria in.

    Goldfish disease?
    I just brought home a black moore goldfish from walmart yesterday(yes , i know walmart). In 24 hours his behavior has been kind of up and down. I prepared his bowl by setting it up and letting it sit for 2 days before i put him in. Since putting him in he appears to have formed a white film over his eyes and his eyes appear to have a reddish ring in them. Is this a response to stress, chemical imbalance in the water, or a disease? PLEASE HELP!

    • ANSWER:
      All of the above.

      It is most probably a bacterial infection caused by poor water quality and made worse by the stress of cramped quarters and toxic water. Goldfish kept in bowls can only be kept alive by constant water changes. In order to live long, healthy lives, they need large tanks with room to grow and swim as well as heavy filtration to keep their water clean. No fish should have to live without filtration but goldfish especially produce a lot of ammonia. Ammonia burns the gills, damages the internal organs, and will absolutely kill your fish given a few more days.

      To help your fish the most immediately, start by changing out half of his water with clean, dechlorinated water that you've allowed to sit and become room temperature. You'll have to do this DAILY. Buy some medication for the bacterial infection, too. I don't know if your fish will make it, but this will give him a fighting chance.

      Most importantly for your fish's long term benefit, buy a larger tank. For one black moor, you'll need a 20 gallon tank at least. I know that seems big but if you keep your black moor alive it can grow to be up to a foot long! It's better if you buy pieces separately at a petstore or fish store, rather than buy a kit, so that you can choose what to get. Your goldfish won't need a heater since it's a coldwater fish, but be sure to get a good filter that can handle up to 50 gallons or so. If money is tight, gravel and plants are expensive and not necessary to start out with. There are also fish foods specifically made for goldfish rather than tropicals.

      When you transfer your blackmoor, you will need to either:
      1) Buy a packet of BioSpira and put it into the tank at the same time as your fish. It's the only product that actually works to instantly cycle your tank. Or
      2) Test your water daily for ammonia and nitrate levels. Change 20% of your water any time you have an ammonia reading above 0 or a nitrate reading above 40ppm.

      For future reference, so you don't have to go through this again, new tanks need to be cycled before you add fish. Just letting the tank sit for x amount of days or even weeks doesn't do a thing. You have to feed the bacteria to grow a colony in there capable of supporting a fish population. There's a good article here:

      Good luck! If you have further questions, Aquahobby's forums are friendly, helpful, and a lot more knowledgeable than the average Answer here!

    Is my goldfish ill or okay?
    Theres only a couple of things wrong with my goldfish. Hes red on one side as if hes cut and sometimes it looks like theres a tiny white speck on his eye but its not very noticiable, under his eye its a little red too...he swims normally so still seems happy enough! But it does look like he swims sometimes as if hes wriggling his body lol what could be up with him? He had a internal bacterial infection before so I already have Tetra Goldmed medicine, ive used it but its not worked ... What could be wrong with him? :-S im just worried about his side which looks all red and cut!

    Ps the tank IS big enough 28x8x8 and I have him plus a little 1inch comet in it (hes about 2-3inchs)
    I clean there water out partially each week and they have a filter in there! And YES I do put dechlorinator in the

    • ANSWER:
      no that tank is not big enough
      1 goldfish = 20 gallons
      2 gold fish = 40 gallons.

      Your fish is likely suffering from stress and ammonia burn
      caused by being in too small a tank.
      He is also likely to be suffering from a bacterial infection.
      This also is caused by being in too small a tank, poor water
      conditions and stress.

    how to treat a goldfish with finrot?
    my bf and i bought two oranda goldfish last week, and in the past day one has developed a red mark on one if its fins, which looks like fin rot. the other fish keeps chasing it around the tank, which i think could be the cause if it is making it stressed, and if so is it best to seperate the two fish? also, when putting antibiotics into the water, is it best to treat the infected fish alone, or both fish in case it has spread to it (although it does not shows any signs of the infection).

    • ANSWER:
      Most fish have a good natural resistance to bacterial infections, and a healthy fish will often be able to resist an infection on its own. For this reason not all bacterial infections are contagious. Often only the weaker, older, and most susceptible fish will succumb. The best way to prevent bacterial infections is to feed the fish quality foods, and maintain a healthy environment so that their natural resistance will help them fight the infection.
      Treatment: Raise temperature to 80 degrees, Do a partial water change. Add one of the following antibiotics:
      * Maracyn ( Fin rot, white growths)
      * Maracyn II ( Eye cloud, sores, red streaks, popeye,
      bloat, fin rot)
      * Furan-2 ( Mouth fungus, fin rot, sores)
      If no response is seen within 4 days, switch to a different medication. Bacterial infections are often associated with external parasites, and a combination treatment for parasites is usually advisable.
      Hope this helps ya!

    Goldfish Eyes Deteriorating?
    My red telescope eye goldfish seemed to be coming down with a bacterial infection. He was acting very lethargic, was sitting at the bottom of his tank on his rocks, and was very uninterested in food. This is very uncharacteristic of him. I called a few aquatic stores and was told to treat the tank with Super Ich Cure. I have been following the directions exactly as they appear on the box, and he has been perking up; however, I am now noticing that his eyes have become clouded and the outermost covering seems to be peeling off in some areas. What is going on?? I want my fish to get better, and I don't want to be harming him more with this medication. Please help.

    • ANSWER:
      Ich cures do nothing for bacterial infections. First off, you need to dramatically improve the water quality. That means 25-33% water changes, daily for 2-3 days. Then take a day off and go 2-3 more days.
      You can add aquarium salt at the rate of 1 rounded tablespoon per 5 gallons. Adjust by adding more after a water change.

    What does it mean when a goldfish's fins and stomach turns red?

    • ANSWER:
      NO to all the above. It's a bacterial infection common to goldfish called hemorrhagic septicemia.

      The fish probably got it from bad water quality. So address that issue first. Good filtration, water changes, plenty of room, (goldfish need space.) And test for amonia and nitrites. (Some pet shops can do that for you.) Bad water stresses fish and causes them to weaken and get sick.

      Once your water quality is taken care of, you need to treat this with antibiotics and fast!
      one called maracyn works great for this. Just about any tropical fish store will stock that. Get enough to dose every day for AT LEAST A FULL WEEK!!!!
      I cannot stress that enough. ANY time you use antibiotics you have to do this for the full week. Even if the fish looks better sooner. Otherwise the infection will rebound only this time will be immune to the treatment.

      Maracyn will cloud the water a bit. Don't worry. Once the fish are cured your regular water changes will remove that.
      BUT... it also makes it hard for the water to hold oxygen so you might want to increace the airation. (or add some if you don't already have it.)

      This disease will kill if you dont' stop it. If yours just has red streaks on the fins, and a little red on the body it's fixable.
      I have seen fish litterally have holes eaten into their bodies and still recover. But leave this alone and it WILL kill the fish.

    goldfish sick?
    I had a sick goldfish and treated with Maracyn I also had high PH levels which is now back to normal for a week now. Since getting the the PH balanced the fish (3) seemed to be themselves again. However, now I have noticed some red lines in my gold ones tail and it looks like her orange colour is peeling off on one small part of her gill. My big black moors lips have turned white, not fuzzy but just white. I want to treat for fungus but not to sure what to use. Maracyn didn't really help. Should I use Maracyn2? and what about the red strips what is that???. I don't want to over treat. Could it be after effects of bad PH levels? Thank you

    • ANSWER:
      Red streaking is septicemia, a bacterial infection, caused by poor water quality. On your black moor its probably a thickened slimecoat caused by poor water quality. You dont mention, how big the tank is, how often you do partial waterchanges, what your water parameters actually are, ph, ammonia, nitrites, nitrates. All are important if you want better answers.

      Fish adapt to a certain ph aslong as its STABLE. Messing with it has stressed the fish out.

      Ive never had luck with Maracyn 1 and 2.
      To another question answerer, there is a Maracyn 1 and 2 for freshwater and a Maracyn 1 and 2 for Saltwater. You probably will have better luck by keeping the water pristine and treating with Pimafix and Melafix.

    My goldfish is turning white and is going on top of the water why is that?

    • ANSWER:
      The whiteness is a sign of bacterial infections to the goldfish which may possibly be caused by the quality of the water it lives in. However, sometimes you may get one that just have a weaker immune than the others since I have kept goldfishes and some can survive the nasties and others can't.

      If you have any medication drops on hand I would clean out the water and put some in. You may also want to quarantine this goldfish from others if you keep more than one to stop others from getting sick too. You can put the sick fish into a smaller tank or bowl and put medication drops into it to hopefully get it out of its rut. I kept a red-cap which was half afloat with bulging eyes and it survived after I use the drops. Go to you pet store and ask for the medication if you don't have it.

    My telescope goldfish has recently developed cloudiness in both eyes.?
    I've also noticed she has been swimming very erratically and bumps into the sides of the tank. Sometimes she flops around in the water and it looks almost like she gets stuck on her side...Her normal swimming habits include usually moving around the tank slowly or hanging out at the bottom. I'm not sure why, but she has cloudiness in both eyeballs. I keep a five gallon tank and she's the only one that inhabits it. The tank includes an overhanging filter and includes fake plants and a smooth rock. What's wrong with her?
    Yes, my tank is cycled but I need a new tester kit for the water so I'm unsure of the levels. Swim Bladder seems appropriate, however I'm unsure about pop eye. She already has protruding eyes because of her species, and I don't see any additional growth on her eyes, just the cloudiness. Just recently (within the past few minutes) I've noticed she has been swimming upside down. Is this associated with SB?

    • ANSWER:
      She has popeye & swim bladder (SB). Popeye is a bacterial infection which causes bulging or cloudy eyes & with dark colored bettas you can often see a white ring around their eyes, too. I'm assuming your tank is cycled: to treat the popeye get Kanaplex/Kanamycin; it's best for infections & easiest on fish, so order it as it's normally only available online. For now, get Jungle Fungus Eliminator or Clear @ PetCo/PetSmart. If you can't get either get Maracyn 1 and 2 (yes, both, since each only treats one type of infection) @ any pet store. Maracyns are recommended least because they've been so overused that they sometimes don't treat today's infections. Before adding meds for a cycled tank, take out the carbon since its removes meds & do a 10-25% water change (the amount you'd normally do for a weekly change unless pck. directions specify a different amount). Treat daily for 3 days (follow package instructions for cycled tanks & the amount & frequency of water changes). Retreat if necessary for another 3 days. Wait 20 minutes after a water change to add meds, sooner dilutes them.

      SB won't kill him, but can be permanent. It's when fish swim or flip on their sides, have trouble swimming up or down or are seemingly "pulled" back to the top when swimming downward. If it is permanent know he's not in pain or suffering even if it bothers you. It's unpredictable: some fish have a few good days/week or a few good hours/day, others live with it for good. You can add plants and taller decor in case she feels vulnerable or just wants something to anchor herself to. There are a few other things to try & possible causes of it:
      1) Food: His stomach is the size of his eye, so feed 2-3 pieces of food/day & fast him 1 day/wk. Flakes, pellets & freeze dried food have filler which can cause bloating problems & are least nutritious. PetSmart/Petco sells frozen food which is better-brine shrimp, bloodworms, glassworms @ -5/pack. If you feed pellets, soak them a few min. before feeding, or they can cause bloating by expanding when coming into contact with his digestive fluids.

      2) Some develop it @ the end of their lifespan.

      3) Some fish have malformed organs due to overbreeding & bad breeding & if you got yours @ a chain store that's a real possibility. Normally, they'd be culled @ a young age but due to the sheer # of fish this is sometimes overlooked.

      4) SB caused by bacterial infections are usually due to bad water quality. You treat it the same way as described above for popeye.

      Disease is usually brought on by cold or poor water quality, so make sure of the following:
      1) Water changes remove toxic ammonia which forms in water from uneaten food, waste, breathing. It's colorless & odorless so you can't tell if the water s ok by just seeing if it "looks" clean. Again, assuming the tank is cycled: change 10-25% of the water & vaccum 1/3 of the gravel 1x/week (exact levels determined by your water test results). Doing more causes a mini cycle that can sicken him & doing less poisons him with the toxic water he lives in.

      2) Goldfish are dirty fish & she needs @ least a 10 gallon tank for just her. She also needs double the filtration for the tank (i.e. a 10 gallon tank would need filtration for a 20 gallon tank). Anything smaller is causing her to live in toxic water 24/7.

      3) Check your tank levels to see if your water levels are "off". What are the readings for Ammonia, Nitriate & Nitrate according to your water test kit? Also, strip tests they are notoriously unreliable-if you use them toss them & get liquid test kits. However, if you're using API's liquid test kits, which are good, beware that though it's not marked on anything they expire after a year & there's no way for you to tell how long they mave have sat on a store shelf before you purchased them.

      4) You mentioned a filter, so I assumed the tank is cycled-is it?

    I have a black moor goldfish that has been floating at the top of the tank for just over a week?
    I have done a water change, in fact I moved him and my other goldfish to a bigger tank, I have been feeding him only peas for the last three days and he is still just floating at the top of the tank. When I feed him or if I touch him he moves quite a bit, but he literally can't swim down, it's like he has a balloon in his tummy. I am not sure if it is a bacterial infection as I don't see any other telltale signs like redness etc. So I have two questions : 1. if I treat him for a bacterial infection and he doesn't have an infection, can this harm him? and 2. can anyone tell me what else I can do if it is swimbladder causing the floating? Please help??!!

    • ANSWER:
      Medications for bacterial infections can be harsh, and it will only make him worse to treat him for something he doesn't have. This isn't even a common symptom of bacterial infections. It sounds like swim bladder, which isn't usually related to bacterial infections.

      You might try some Epsom Salt. 1 teaspoon per 5 gallons. This is a muscle relaxant and laxative, it should help with swim bladder caused by anything but injury.

    Why is there a huge white pimple like thing on my goldfishes chin?
    I got this goldfish at the fair the other day and it has a white pimple like thing on his chin. I have had goldfish before and a betta fish, so I used the same water conditioner I use for my betta. It is about the size of his eye. No goldfish disease I read about on the internet sounded like my fish. I know it is not ich because it is only one bump, and it is bigger that those I have seen in pictures. Also, how often should I change the water until I can afford a filtered aquarium?

    • ANSWER:
      i think this is what you are looking for if not here are many other illnesses you can look at

    Goldfish scales peeling off?
    My gold fish scales are peeling off.I have isolated it in a separate tank it is eating good and it doesn't show any sign of sickness but its clear that its scales are peeling off and stains of blood near its tail. Is it due to infection ? Will it get automatically cured if i isolate it in good water and proper feeding ?

    • ANSWER:
      It sounds like a bacterial infection, mostly caused by water quality issues. If that's the case then no, it won't cure itself if it's gotten to the point its scales are peeling off and its tail is already streaking. Unfortunately it will most likely get worse.
      If you have it in isolation my suggestion would be to treat it with a broad-spectrum antibiotic and make sure the display tanks water parameters are up to par as well.
      Best of luck

    Goldfish lost some scales?

    Weeks back I noticed my Goldfish had a silver/white looking patch on his body. Now I noticed that he has lost some scales in that area too. He does have frequent jump arounds and does scrape against items like the gravel or airstone. His behaviour at present is normal.

    My other Goldfish also has started developing some white/silver patches now.

    What is this thats happening and what can I do to sort it out?

    Many Thanks-

    • ANSWER:
      It could be a fungal infection or a bacterial infection, or symptoms of high ammonia, nitrites, or nitrates, or even carp herpes. But it is certainly not ich. Ich is a parasite that looks like grains of salt. I suggest testing your water and going from there.

    Red bloody, ammonia burn on my goldfish, but ammonia level is normal.?
    I have a 48L jebo aquarium and I have one small Lionhead inside and (had) a Chinese algae eater.

    I actually had two algae eaters, the first one died which I suspect from starvation because there was no more algae in the tank, however after I removed it from the tank, black hair algae began to grow on the gravel and plants.

    So I bought another algae eater to clean it up, but after a few days it died.

    I found little red rashes on the algae eater:
    I believe this is ammonia burn?

    There's also a similar red blood splotch on my lionhead's tummy as well, which I only just discovered last night, so I tested the water immediately, but the ph and ammonia levels are fine.

    The lionhead's also been swimming and wriggling on its side, I'm not sure if this is normal behavior or if its skin is irritated. Either ways, the lionhead's still pretty active and eats normally, though I have recently discovered that he's gotten a bit fat and bloated.

    I'm really baffled, is it the black algae that's harming my fish?
    I use stress coat+ and water conditioning salt to condition my water, and I change the water about once every two weeks and test the water regularly.

    Are there any product recommendation on how to treat this? Or any other suggestions, I really don't want my goldfish to die, I've had him for awhile now.

    The ammonia level is 0 (yellow colour) and ph level is about 7~7.5

    Gosh, I had no idea chinese algae eaters was tropical, the pet shop lady said it was fine when I asked I needed one for my goldfish tank :( My first algae eater lived for quite awhile too so I had no idea~

    I change the water about once every week, if not once every 2 weeks. Since it's only one little goldfish, I didn't think it would produce much waste for a big tank.

    I'm also looking into getting a bigger tank once the goldfish gets bigger.

    Thank you for your help, I will be sure to get back to you once I get a nitrate reading.

    • ANSWER:
      First off, Septicemia is not caused by bacterial infection sorry, Secondly NO SALT in a goldfish tank or pond. NEVER. Skin is irritated by the salt not needed doesn't help any way.

      Your CA's are fine with goldfish they are NOT tropical, however if the temps drop below 65 they will stop eating no algae no nothing and go into hybernation!.... Ok so now, your PH is fine, your chinese are not tropical.....who said that...BULL. SOmeone who doesn't know fish they are fine. Every week 25% water change no less and Your algae eater did die of starvation. you need to feed them if you have no algae or very li9ttle i n the tank. seriously.

      Your fish is wiggling because your fish is suffering from swim bladder due to poor diet., Swim bladder needs to be addressed due to goldfish being pigs You need to stop feeding all foods but GREEN veggies now. No flakes no pellets and never salt or floating any kind of food for tanked goldies. EVER.

      You need to test the water. Get your OWN test kit and go from there However your Chinese is fine with the goldie here. REALLY.

    My bubble-headed goldfish need some help?
    My goldfish has this white stuff around its mouth. The mouth looks like its about to close up. There's some redness around the area too. What is it and what should I do? I've been treating him for about a week now with that all natural melafix stuff

    • ANSWER:
      The bacterial infection mentioned in the previous answer is Columnaris, usually referred to as "cotton mouth disease" or "mouth fungus" because of it's appearance. The best treatment for this is Furanace (generic name Nifurpirinol).

      It starts as a white cottony area, but as it progresses, the red ulceration appears at the center.

    my friends goldfish has bacterial infection indicated by a pinkish band on the underbelly.?
    she is tried everything from tetracyline to fish tank salt. it is now in a hospital tank, eating quite well and swiiming properly, though initially he was standing a lot. the pink band is just not going away. any suggestions?

    • ANSWER:
      Check out this site:

    What is wrong with my goldfish??
    I just got back from my vacation and my next door neighbors were watching my gold fish.When I got back I noticed that on my goldfishes nose there is this white bubble like thing there and there is a little red.What is wrong is it normal??!!??
    Can he die from it
    Oh and if I need medication for it where can i get in Canada because I live in Canada

    • ANSWER:
      Probably a bacterial infection such as Furunculosis. I would suggest treating with Maracyn 2 or Maracyn TC. Just treat as directed on the package.


    What is my fish doing?
    Ok i have three goldfish one of them seems to be a bit fat, whenever i feed her she seems to have trouble swimming. Sometimes she will be a bit on one side, or she will seem to be floating to the surface and has trouble staying down. What is happing, what should I do?

    • ANSWER:
      Your goldfish most likely has dropsy - a common bacterial infection in goldfish, or is bloated. Goldfish are messy fish that grow large (6-8" for fancy goldfish such as the oranda, lionhead, ranchu etc., and up to 2ft for common goldfish such as the koi, shubunkin and comet) and need an over-filtered tank for them to thrive.

      I wouldn't recommend anything under 20g with double the filtration for a fancy goldfish, although large is so much better. As for a common goldfish, I wouldn't recommend anything under a 100g with double the filtration. Common goldfish are not usually kept in home aquariums by the responsible fishkeepers due to their large size and the amount of waste they produce.

      Here's a website that explains the dropsy condition and gives some advice on how to treat it. It's either dropsy or swim bladder disease (which again, isn't really a disease - just another bacterial infection) that your fish has, so take a look at these:

    can goldfish fins and scales grow back?

    • ANSWER:
      Yes, with time unless the damage is so great that it will just leave a scar. No, fish cannot live without their scales, it's like their skin!

      Buy some Melafix to put in the tank (it comes in a blue bottle and can be found at petstores everywhere) and this will help speed up the process of your fish being healed. Unfortunatly, if he's not healed within a weeks time, your fish will likely die because his slime coat has been torn away and he will be suspectable to bacterial and viral infections.

    HELP. Goldfish with torn scales?
    I came home today and my red oranda is missing some scales. The patch is bloody and it looks as if he rubbed up against an ornament the wrong way because the patch of scales are slightly lifted up from his skin. His behaviour is relatively normal, he's acting a bit spooked but that's it. What should I do? Will he be ok?

    • ANSWER:
      Could be a serious bacterial infection. I dont think a fancy goldfish would be able to injure itself that hard. Do an immediate 80 percent water change. Add aquarium salt and try some medications like melafix. Make sure you follow the dosing instructions for the size of your aquarium. Hurry before it gets serious.

    How to treat goldfish ich?
    I have a lionhead goldfish for about 2 weeks now, and few days ago I saw one white spot on its head growth part(the red head bit), I thought it was just that it's growing, but today I found 3 more white spots, all on its head on the red part, and one of them seem like its about to fall off. So I did some research and suspect it could be ich?

    If it is ich, what do I need to do? Do I need to treate the whole tank or just this one? Because I have other goldfishes but they seemed fine(but one of them had dropsy)

    I heard adding salt to the tank can cure the ich, but I'm just wondering if goldfish can live in salt water since I thought they are freshwater fish? And what salt shall i use? Just normal table salt or Epsom salt?
    The tank is 130 liters with filters and Oxygen pump.
    It was also taking some big breath once in a while these days
    And lies in the bottom of the tank and only comes up to eat
    Thanks, but is it ok to add ich medicine instead of salt? Because I heard its very difficult to control the amount added and if added more can cause more stress on fish. I have this medicine called Bactonex and it's said to assist in the prevention of bacterial, fungal and parasitic diseases in fresh and salt water, or is there specific medicine for ich? And I'm also currently using nitra-zorb in my filter to get rid of the nitrate in my tank, do I need to take that out of the tank while using ich medicine?
    How can I be sure it's ich but not other parasites? This is a photo of my fish, can you tell me if its ich?
    Just an latest update, yesterday I changed 40% of the water, and today the white spots are still there but it's getting kinda blurry now and not that visible. No new spots is found on its fins or body. I guess it might be wen growth and the fact that it lays in the bottom of the tank might be the nitrate in the water. Just a question, when goldfish have wen growth, does it appear as many white spots on its wen or just one or two white spots?

    • ANSWER:
      Ich will look like small grains of salt, so make sure it's ich before treating and not some fungal or bacterial infection that has gotten into its wen

      Anything with malachite green is highly effective in treating goldfish for ich

      No epsom salt - that's not what it's for (no table salt either)
      You shouldn't have to use salt in a goldfish tank, but if you do for some reason only use regular aquarium salt that you can get at any pet store

      Using anything to lower nitrates is going to do more harm than good - good old fashioned partial water changes to maintain good water quality or you're just going to have a big mess on your hands

      You need to treat the entire tank. Ich is highly contagious and once you have an outbreak the parasite will use any other fish as a host

      If you lost one to dropsy and are now dealing with ich there's something going on inside the tank, so a kit to test ammonia, nitrites and nitrates would be a really good idea - partial water changes accordingly

      30% water change before treating and remove any carbon media if you use it in your filters, and keep a close eye on parameters during and after treatment until you're getting normal readings

      Good luck

      ~I tried to blow up the picture as large as I could get it, but from what I could see they don't look like small grains of salt

      If it's not spreading to other parts of the body in the next 24 hours bump up small partial water changes. You need to get your water parameters in check
      If it's ich you'll know it - it spreads fairly rapidly and you will be seeing it on the fins and body as well

      Some of my orandas will get very small white pimple looking spots when they have wen growth, but they go away very quickly and they don't act ill or display any of the symptoms yours is

      My suggestion would be to do a 35-40% water change if you haven't done one in the last 4 days and wait a day to see if you're actually dealing with the ich parasite or some kind of fungal/bacterial infection

      @mle. I would be the first to agree that medicating should be a last resort, but if it Is ich and it's resistant to a *slight* temp raising along with the salt and he finds himself having to keep bumping up the temp it's going to stress an already ill goldfish even more. Tropicals may be able to handle the kind of temp it would take to kill off the parasite and its life-cycle - goldfish wouldn't handle 85+ degrees in an already overstocked tank for very long. So if he finds out in a few days that it's actually ich and treats with heat and salt and it doesn't work, it's going to be too late
      He's dealing with approx a 35g tank and sounds like he's keeping multiples and having water quality issues already

      It's up to you what you want to do, but if it were my tank I would wait another day to make sure you know what you are (or aren't) dealing with
      But you Need to be stepping up the partial water changes. Replace a few gallons every day if you have to until you're getting normal readings or you're going to be constantly dealing with any number of issues

      Don't medicate until you know it's something that actually needs to be treated
      If it turns out to be fungal or bacterial - treat appropriately

    Can I medicate my goldfish for finrot and ich at the same time?
    My goldfish got finrot around 4 days back. I put in medication ( Tetra finrot treatment, its color green i dont know what chemicals though) for it but now im afraid they have developed ich. What would be my best course of action? thanks.

    • ANSWER:
      Not really fin rot is a bacterial infection whereas ich is a parasite. If you have a filter then put a carbon sponge in the filter and let it run for 24 hours you then treat for ich (protozin is best) also a little salt and turn up the temp. I'd would do a good water change first as well, also reduce feeding as they as very suceptable to further outbreaks as stress lowers their immunity.
      Which brings me to another point, both fin rot and ich are a sign of poor water quality so check you arnt over stocked goldfish need 8 gals each and that the filter can cope with the amount of waste they produce . You should test the water from time to time for ammonnia and nitrites both of which should be 0. Goldfish are quite hard work so good luck. di

    My fish has both constipation and a bacterial infection. Don't know which to treat first, can you help?
    He's be constipated for some days and on the side where his scales are lifted he got a white cottony infection.
    I cleaned him with a salt solution and the white stuff came off, but know he has a sore on his mouth that looks like a bruise.
    How do I treat him without affecting his constipation?
    Can i treat both at the same time?
    It's a goldfish
    He looks like he is tired but desn't look like he will die anytime soon.

    Core problem is constipation and infection came from the raised scales on one side of his tummy.

    • ANSWER:
      Is your fish a goldfish? Are there other tankmates? Ideally you would isolate this fish from the others. But if this is not possible, you will have to treat it with the rest. (A small hospital tank is good because you can isolate the sick fish and it can recover better as there is less stress. Sometimes stress from other fish causes problems. But a tank such as this would need to have been set-up and running beforehand.)

      First, make sure the tank is clean - zero ammonia, zero nitrite and low levels of nitrates. Make sure there is no waste or excess food lying about on the gravel.

      Sounds like it may have a fungal infection. Salt solution would help this but water quality is key. There are some anti-fungal remedies on the market as well -- I would consult at an aquarium store if you decide to treat it. Sometimes if you just make sure the tank is clean, the water temperatures stay consistent and slightly elevated (about 78 degrees), and you add a little aquarium salt (don't use table salt) this is the best remedy.

      Constipation can be treated at the same time -- try foods rich in fiber such as boiled de-skinned peas (if it's a goldfish). You can use live foods or frozen foods such as brine shrimp, bloodworms, etc.

      Epsom salts (1/8 tsp per 5 gallons) instead of the aquarium salts may help with constipation.

      If the cause of the fungus is just unclean water, then it's an easy fix. If it does have an underlying bacterial infection, then it may be harder to treat. Personally, I have not had good luck with the commercial medicines. The ones that treat topical ailments are the most effective. Remedies for bacterial and/or viral infections that are internal are difficult to treat. The fish needs to have the treatment internalized and these medicines that you put in the tank are external. You can get medicated food, but I have not seen it very often in stores.

    help!! my goldfish has red streaks on tail and clamped fins what sickness is this?
    when i was feeding my goldfish one morning i saw that one of my goldfish has clamped fins and red streaks on tail my fish is swimming and eating well but sometimes i can see my fish not swimming well but just staying in one place and i did not saw on my goldfish like white spots or something but just only red streaks on tail and clamped fins what sickness is this and what medications should i treat please help me thanks!
    my fish is in a 2.5 gallon tank with only 2 fish in it i am testing the poop of my fish because some say if the poop is white it also could be a parasite but thanks to those who suggest there answers to me.
    And also my tank has no filter in it but may i ask if there is a medicine for clamped fins?? Thanks
    And rather than using aquarium salt could i use rock salt is there no iodine added to it?? Thanks ^ __^

    • ANSWER:
      the start of septicemia... a bacterial infection caused by poor water quality.
      I'd suggest a 50% water change, add a dose of aquarium salt and a good antibiotic like a combination of maracyna nd maracyn 2.

      what size tank is he in and how often are you doing water changes?


      2.5gallons is enough for a single betta... and that's about it.
      goldfish are SUPER messy and get pretty big. they need large tanks with heavy filtration. (if they're fancy 30gallons for two or if they're common 55gallons for the two)

      the septicemia is from being kept in a tank that is MUCH too small without filtration.

      honestly, I'd suggest returning them or offering them on craigslist or freecycle to someone with a bigger tank... unless you're willing to get them a larger tank.

bacterial infection goldfish

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