The fish was swimming erratically a few days ago, but barely moves at all now. I've been treating the fish with a combination of Aquari-sol and Quick Cure, at the recommendation of a knowledgeable friend, but so far the response is minimal. My biggest concern at the moment is ensuring that the fish ...

It does not seem to have any sores or lesions on the body, but he is only around 2 or 3 inchs so its hard to see. Infections are in different places of the body and he is in with some tetras that would not harm him. Any ideas?

A week ago I bought a small gold nugget pleco (an L081, I believe) from the LFS and just when I thought it was finally adjusting to my tank, it got sick.

There are white cottony blemishes on various parts of its body and I suspect it is a sign of cotton-wool disease.

I've isolated the pleco in ...