"So, here is one of my handsome males. Since the last month, he had becoming very “fat”,
like his abdomen is pump up with the ear…
There is nothing wrong with his behaviour – eating well, swimming quickly, court the females, spreading fins and dominate over others males…
What do you think about…did anybody have a similar problem?
Could it be some kind of internal infection, which is dangerous for the rest of fish…?"
One of the few diseases that affects rainbowfish is fish TB. It can display in many ways which is why I think sometimes people have trouble recognizing it. Most of the time you get ulcers on the surface of the rainbowfish and often the mouth. It can affect internal organs too and you can often see a fish "wasting away" and getting very thin. It has been suggested that when the kidneys are affected that it can lead to water retention and the fish puffs up. To me this usually looks like dropsy as the scales of the fish also pushes out. It doesn't look like this has happened to your fish <yet>. I think a friend of mine had a great photo of TB nodules all around the liver of a fish, which is very diagnostic of the disease. If I find out where it is I'll post the URL. As suggested though I would remove the fish and put him into a separate tank. To avoid stress (TB) in rainbowfish do lots of water changes (50% weekly) avoid large pH shifts (often due to lack of water changes) real high temperatures - 73-78 is probably more suitable for many rainbowfish. Sometimes they still come down with it, perhaps by stress brought on by another fish pushing for dominance. I remember Hristo saying that he did a lot of water changes and you can see from his tanks that they are pristine (perfect looking water) so this is not to say that this is the problem with his setup.
Someone else did ask if the fish was producing normal waste products
I have seen rainbowfish get filled up by things that they shouldn't eat. If you use the real hairy yarn mops to breed your fish they might be eating too much of the mop. I don't use the real hairy yarn in my tanks because of that possibility. They are pretty, but they are also very Jessica Simpson- like
Actually the ANGFA group has named them "The Blondes of Sahul" for those reasons.
GW
[/quote]
like his abdomen is pump up with the ear…
There is nothing wrong with his behaviour – eating well, swimming quickly, court the females, spreading fins and dominate over others males…
What do you think about…did anybody have a similar problem?
Could it be some kind of internal infection, which is dangerous for the rest of fish…?"
One of the few diseases that affects rainbowfish is fish TB. It can display in many ways which is why I think sometimes people have trouble recognizing it. Most of the time you get ulcers on the surface of the rainbowfish and often the mouth. It can affect internal organs too and you can often see a fish "wasting away" and getting very thin. It has been suggested that when the kidneys are affected that it can lead to water retention and the fish puffs up. To me this usually looks like dropsy as the scales of the fish also pushes out. It doesn't look like this has happened to your fish <yet>. I think a friend of mine had a great photo of TB nodules all around the liver of a fish, which is very diagnostic of the disease. If I find out where it is I'll post the URL. As suggested though I would remove the fish and put him into a separate tank. To avoid stress (TB) in rainbowfish do lots of water changes (50% weekly) avoid large pH shifts (often due to lack of water changes) real high temperatures - 73-78 is probably more suitable for many rainbowfish. Sometimes they still come down with it, perhaps by stress brought on by another fish pushing for dominance. I remember Hristo saying that he did a lot of water changes and you can see from his tanks that they are pristine (perfect looking water) so this is not to say that this is the problem with his setup.
Someone else did ask if the fish was producing normal waste products
GW
[/quote]
(don’t mean this post exactly/only…)