I have a few books on fish disease and I can't find anything about this.
I have an angel that's about 3 years old. The base of his fins are red (bloody) and his eyes look blood shot. He's lethargic, barely moves, and doesn't respond when you move something near him. I put him in a qt but I have not added any medication yet because I don't know what's wrong.
Tank is 29 gal
angel about same size (one eye from physical damage)
black ghost knife about 6 1/2"
senegal bicher about 6"
All the other fish are fine and the tank has been stable (3 years+ running). I haven't checked water parameters yet but all the other fish are fine. I'll add them after I check.
So what is going on?