Can't figure this out

nano55

nano55

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May 14, 2007
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My daughter has a 55 gal. tank with assorted africans. This is a well established tank, it has been going for about 8 years. They have not added any new fish since January. About 2-3 months ago, they started losing fish. So far, they have lost about 8 fish. One by one, the fish would get sick with whatever they had. It would last about 2 weeks, then it would die. It resembles a bacterial infection and they have treated the tank with all different types of medications and done all of the proper water changes. They have tested the water, and all of the water levels come back with in normal ranges. Whatever it is, it is pretty contagious to the fish. Any suggestions on what they should do? :1zhelp:
 
Can you post pictures of what it looked like by any chance?
As well, it could be something that was living in the tank beforehand. A few diseases can live in the gravel or in the tank for a long time and then attack...
 
phoenixn7g said:
Can you post pictures of what it looked like by any chance?
As well, it could be something that was living in the tank beforehand. A few diseases can live in the gravel or in the tank for a long time and then attack...
Click to expand...
Here is a picture of one of the sick fish.
Kids080.jpg
 
Is the pink the infection? Its kinda hard to see
 
Nano, we need more and clearer photos of those affected areas. Do you have a microscope in your house? It doesn't hurt to do skin scrapes and get magnification images to determine whether saprolegnia is also involved. From the outlook here based on your photo, bacterial infection is definitely one of the issues. Do they also have white spots? It's hard to tell from your photo.

Please post the exact water parameters, brand of test kit used and treatments you used. How often do they change the water? How did they use the treatments? What do they feed their fish? We need more information on this scenario. If your daughter attempted to use various treatments including antibiotics, then I will question the water parameters. A lot of antibiotics destroy the beneficial bacteria responsible for stabilizing the toxic ammonia and nitrite. If the water parameters are in safe range as you think, I would also question the reliability of the test kit.
 
Columnaris? I agree w/ Lup that Bacteria is a contributing factor. Have you ever tried the Jungle brand anti bacterial food? It works quite well ;)
 
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