Animal Stories - Fish Disease and Treatment

Animal-World Information about: Fish Disease and Treatment

Introduction to aquarium fish diseases and treatments.
Latest Animal Stories
vikki howe - 2011-09-29
I have 3 parrot fish. One off them stayed in a wee cave I have in the tank for around 2 weeks only popping its head out to feed. When it eventually came out it seems to have developed a growth of some kind on its underside. It is quite a big growth. Can anyone tell me what it is? Or if it is something I should worry about.

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  • Charlie Roche - 2011-09-29
    I don't know what you mean by growth. There are several things it could be and the
    SYMPTOMS are listed in the Animal World Article Fish Disease and Symptoms. Scroll down to the symptoms and the recommended treatement is there.
  • mark howe - 2013-05-28
    take pic
Welsh - 2013-05-12
I have a 56 gallon tank with now five fish: 1 common goldfish, 1 fantail goldfish, 1 blk moor and 1 red cap, 1 pleco. I have just noticed that the fantail who I have had for about 4 years, has 3 tumors, looks like under the skin, near tail, dorsal fin and on his side. I know that most tumors are cancer and are not curable but if not it could possibly be treated with iodine. Does anyone have experience with this and how to treat?

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  • Clarice Brough - 2013-05-13
    Sorry to hear about your Fantail Goldfish, unfortunately tumors, both cancerous and non-cancerous do develop in these fish occastionally. Tumors on goldfish can be surgically removed by a qualified vet, but other than that, there's not much you can do. Still,your fish can live a pretty good life even with the tumors, just make sure to keep the water quality high and feed good nutritional foods.
Clemente Rodriguez - 2013-05-01
I have spotted grouper had for about 6 months.  For about 4 days, she has stopped eating eyes were bugging out and then started swimming upside down, mouth is lightly red when she open her gills it is red.  Started giving her Fish Mox to common bacterial infection for about 3 days, she is still alive.  but still swimming upside down not eating I stopped the Fish Mox it changed the water yellow and smelled like medicine.  Did 50 percent water change color looks good but still swimming upside down not eating.  


Not sure what to do, any ideas out there.

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  • Clarice Brough - 2013-05-02
    I sure hope your Spotted Grouper gets better, sounds like you are doing good things to help. Having popeye is a good indication that you are dealing with a bacterial infection, and Fish Mox is an antibiotic formula with Amoxicillin, which should help. It is important with any antibiotic that you dose for the full time the manufacturor suggests. Another you could use are the Maracyn products by Mardel. They have several formulas for popeye and other bacteria, one is a broad spectrum called Maracyn Plus, but another that is good for both Dropsy and Popeye is Maracyn-Two.  (Dropsy is indicated by swimming disorders.) Good luck!
Jennifer - 2013-03-28
My goldfish has been having an issue under his eye on and off for a few months. There is usually red under his eye with a white spot in it and his eye protrudes. It comes and goes. Now he has all those symptoms and his cheek is swelled up. I don't see anything in his cheek and the white spot under his eye doesn't move at all. He's only 2 years old and he lives in a 50 gallon tank . He had ich when he was smaller but we were able to treat it and it went away. I don't know if that would have anything to do with his current eye problem though. Any advice on what to do or what could be wrong with him?

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  • Jeremy Roche - 2013-03-29
    Run some tests on your water to see if any levels are high.  I would probably add some parasite medication to the tank as well.
fishlover - 2013-03-27
My Kenyi cichlid has been flashing violently. I thought it was the giant danios we added as dither fish so I removed them to no avail. The poor fish looks rough and the areas where he is flashing are becoming irriated and a little red. Any thoughts would be so appreciated.

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  • Clarice Brough - 2013-03-27
    Yeah, it probably wasn't the giant danio dither fish. Flashing is usually a sign of a parasitic infection. Look for anything on the fish. If it's Ich, you should see some tiny white spots, usually starting on the fins and maybe the gills.
Sarah - 2013-03-09
A couple of weeks ago I lost 22 fish every day after that I lost a fish every day. I have a platy at the moment that is not eating is flicking himself off things and is swimming with an arched back and clamped find. I don't know what killed all out fish and still don't the only thing I don't different was add a new freshwater plant. Does anyone know why I lost all the fish and why my platy is like this too? He was in the tank when we lost all out fish!

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  • Jeremy Roche - 2013-03-09
    Did you check your water levelc?  Maybe an amonia spike?  I had a similiar thing happen and it was caused by electric current running through tank from a pump.
Babasho - 2013-01-31
I have one thousand and one hundred jumbo sizes of cat fish in my farm. But recently i exprienced high rate of mortality of 45 pieces in a week, before their death, i noticed symptoms like hanging, violet throat face up movement and indigestion as a layman. More inportantly I had my first harvest last december, 2012. and it was ok. pls what is way out? Sokoya Bola.

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  • Clarice Brough - 2013-01-31
    Your catfish farm sounds like an interesting enterprise, so sorry to hear about your losses. There are many things that are potentially the problem. Whenever fish get sick it usually points to problems with the environment, and very often the water quality. Water quality is dependent an good filtration and sometimes regular water changes are needed. Other considerations are stress and stocking levels, if overstocked the water quality can be affected and/or the fish can get stressed. Some fish are very sensitive to lack of space which can lead to bullying and intimidation, and then often cause fish to quit eating. Those are the things I would look at first. If everything is optimal there, then start looking at other possibilities.
prashant - 2013-01-30
i have gold fish and shark. Before 2 days i shown the shark have white spots on skins and gold fish fins have black spots i treated for same as my fish vendor told me but unluckily i not save them what it shown and how can i saved them if this type of problem occurs in future with other fishes. note that in treatment i changed water, add medicines,add 3 TS aquarium salt in 30 liter water and maintain temperature 28 deg C.

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  • Clarice Brough - 2013-01-31
    Its too bad that your treatments and water changes did not help, but it may have been too late. Keeping these two different species together does have some special needs. Goldfish put a very heavy load on the tank, so large regular water changes are necessary. Also their compatibilty needs to be looked at. Increasing the size of the aquarium and making sure there's plenty of decor in the tank to provide lots of places for retreat and hiding may help.
Steph - 2013-03-02
Hi, I don't know if anyone will be able to help or not. I recently bought a young gold long finned Danio to replace one that had suddenly died. There are two other gold danios and a snail in the tank. I have noticed that this particular fish is now staying constantly at the top of the tank water, has slightly torn fins, and looks like her left body fin is fused together (fins should be clear and her's has a line of white running down it) like someone dipped it in glue and let it harden into a white crust. She came to me slightly bloated but the stiff fin is worrying me. It doesn't look fuzzy like a fungus but she is having trouble swimming as a result. The others are active and healthy looking and unfortunately for me I do not have a hospital tank to place her in away from the other fish.

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  • Clarice Brough - 2013-03-02
    Sounds like your new danio is stressed and does have something wrong. Hard to say for sure what's it is, but the tattered fins could be from being bullied by the other two that were already established in the tank. Possibly its fin and tail rot. But without knowing what the illenss is, there are general tonic type treatments like Melafix that may help. Ideally putting it in a hospital tank would be the best solution.
Bella - 2011-10-02
Hello everyone! I purchased a blood parrot fish yesterday (or should I say last night) from walmart. I have been so intrigued by 'bella' and have been watching her every move since, so when I noticed her doing some kind of bobbing movement at the top of the tank sort of like she was gasping for air, I pointed it out to my boyfriend and he replied she's ok that's what fish do. Well after 45 mins or so of her doing it I began to panick once I noticed her laying on her side floating!!!! I really don't know what went wrong. I fed her 3 times today and after doing research I realized that my 1.5 tank is entirely to small for her and my water may not be warm enough. Please if you have any more suggestions as to what may be the problem PLEASE let me kmow. My boyfriend changed the water and bella is now stabalized, I just don't want to wake up in the morning and find my first pet EVER .......flatlined!!!! Thank you in advance!

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  • Charlie Roche - 2011-10-03
    Behaviorial problems are usually a result of tank conditions. Gasping at the surface, swimming sideways etc. Yes, the tank is too small and if the temperature was not properly maintained, this could cause the problem. Hopefully, if you corected it quickly, all should be OK. So check you water conditions, temperature, PH etc.
  • Anonymous - 2011-10-04
    Thank you so much
  • chris - 2011-10-07
    Bella is going to get to be 8 inches when she's grown up. You need at least a 55 gallon tank. They also like the water on the warmer side, I keep mine at 80. BPs also need regular water changes of 25-30% weekly. A betta would be a better choice for your little tank :) This is a good reason not to buy from Walmart, the salesperson should have told you this especially with this fish since it is scientifically impossible not to fall in love with their cuteness...I was hooked on first sight too!
  • Ty Hardymon - 2011-10-15
    Gaping is a behavior that most fish perform when they are in an oxygen poor environment. It is possible (given the size of your fish tank) that there is an insufficient amount of O2 in your tank to sustain the fishes metabolic processes. I would strongly recommend a larger tank. And some reading on your part about your new pet.
  • 0007 - 2012-01-27
    Parrot fish release a lot of ammonia. Require 60 gal tank or 30 with300 gal filter. The tank must have a developed nitrogen cycle bractria takes months must be bought. 150 watt metal halide with plants help greatly. All tanks must cycle ammonia aka piss and shit roten food plants to nitrite also highly poisonous to nitrite less harmful to a harmless gas tht is the cycle when adding fish you must add befetial bactria not cheap crap from walmart only petco or a pet store. Still requires monthy testing for all these,and 50% water change when issues arise maybe even two on different days .CLEAR WATER CAN BE POISONOUS TAP WATER CAN BE NO INSTANT FIXES MUST DEVELPE AND ESTABISHED TANK HE WILL DIE BLACK SPOTS ARE SIGNS OF STRESS LEARN WHAT YOUR DOING BEFORE YOU BY THEY ARE VERY SMART ITS SAD YOU MADE A BAD CHOICE