Animal Stories - Fish Disease and Treatment


Animal-World Information about: Fish Disease and Treatment

Introduction to aquarium fish diseases and treatments.
Latest Animal Stories
LG - 2010-08-25
I have a Black Ghost Knife Fish. He has an area size of a dime with a white cotton like debris. (Fungus?). Have him in a hospital tank and been doing 10% water changes and also been giving Maracyn. He has been like this for almost 2 wks. now. Is it safe for me to remove the white cottonish debris? Seems that it is ready to come off. Although the area is completely covered.

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  • Danni - 2010-09-27
    I wouldn't touch it. However if you read the first entry under fungal diseases it says that severe cases can be rubbed with a medicated cloth (see entry). At the very least be very careful what you try to remove it with.
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Donald A. Haug - 2010-09-13
My goldfish died yesterday due to an unusual swelling of the body. It was like it had a bocce ball in it's stomach. We thought it was pregnant. When I cut it open, a large red mass of bloody watery jelly like substance was inside. The outside was swollen scales and water blister type bubbles that squirted when touched.
What can this be? The fish had to be about 9-10 years old.

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  • Danni - 2010-09-27
    It sounds like Dropsy.
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Elize - 2010-09-27
Hi, one of my goldfishes' body is bent and it stays the whole time at the bottom of the tank. It also seem having difficulty in breathing....what treatment can I use....Please help?

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  • Danni - 2010-09-27
    Protozoan diseases tend to cause difficulty breathing, namely velvet ind ich. "Coppersafe, Quick-Cure
    Ich-Ease, Aquari-sol, Cure-Ick, Super Ick Cure". Bloat is possible, how much is it eating?
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gary - 2010-09-08
I bought some gold gouramis and had them for three weeks, before I put them into my larger aquarium. Five days later, I lost some gouramis and had to make a 65% water change. I took the gouramis out and isolated them and lost 4 of the 7 gouramis. The other aquarium, which I have small gold severums and angelfish for at least 2 months started breathing heavy and lost 4 fish so far. The gouramis definitely brought something into the tank. It seems to be a parasite or viral infection that is attacking the gills. Any information of what to do with medications and suggestions would be greatly appreciated.

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  • Danni - 2010-09-27
    Firstly, if you have multiple tanks why not make one a quarantine tank? Also, the breathing may be a sign of velvet:
    "The best treatment is with copper at 0.2 mg per liter (0.2 ppm) to be repeated once in a few days if necessary. Acriflavine (trypaflavine) may be used instead at 0.2% solution (1 ml per liter). As acriflavine can possibly sterilize fish and copper can lead to poisoning, the water should be gradually changed after a cure has been effected."
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presilla - 2010-09-20
I have a parrot fish. She does not swim but stays with her head downwards and tail up. She has something white like a tube coming out from her anus. Please help?

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  • Danni - 2010-09-27
    The tube part may be a nematode (parasitic worm).
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marnie - 2010-09-15
Hello, my swordtail has recently developed a holi ender his mouth and his head looks like it is molting. What is this, and is it contagious to my other fish?

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  • Danni - 2010-09-27
    It sounds like "hole-in-the-head"
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Renee\' - 2010-09-21
One of my full grown angel fish (freshwater) got itself stuck between the spoge cover on the outtake tube and ground down its fin, part of the side scales and it appears that its eye may be affected too. I put a little aquarium salt in the tank (it is a 45 gallon tank with 4 angels, 4 swordtails, 6 corys and 2 pitbull cats) the water tests good (we have well water) and all other fish are vigorous and healthy. The fin is about half there, the side swipe looks like it will heal, and possibly the eye (which has a milky scoured look), will the fin grow back or just be small now?

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sinclair - 2010-09-19
My neon glo lite tetra looks like a black bacteria is eating away its face my other fish died the day it started help!

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teresa rodda - 2010-09-13
We have a black ghost knife fish about 30cm long and about 4yrs old he has blisters on his body and he is still eating well the blisters pop and he loses his skin what could it be?

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Lisa Pfouts - 2010-09-01
We have a Comet who is gold and about 8 inches long. My son won him at the fair exactly a year ago. The past few days he has had black on both sides. It started as a black dot on one side of the head and then both sides and today there is black on the lower part of his body. Sometimes his fins are up and he seems fine and then they are down and he just seems to float. I read through the list of diseases but nothing seemed to match. Right now he is just suspended with his head pointing down. Thank you if you can help me. If we lose him, my son will be devastated.

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  • lulu - 2010-09-06
    Black patches can be a sign of ammonia burns. What are your water parameters, how often do you do water changes (and what percentage do you remove) and what size tank is the fish in?
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