My immediate thought was this clown is getting picked on. The fin damage, hanging at the surface and the missing scales all point to that. You won't likely see it happen because when you are in the room, the fish may stop fighting. There is also the possibility that it is getting picked on because it is weak from being sick though.
I found some formalin but when I got home today he was dead. This is what he looked like. Other fish are still ok with no signs. Any suggestions on what I can do to help prevent them having issues?
I found formalin today but when I got home he was already dead. Not sure if it’s from the shock of the FW bath and ick treatment I did yesterday or what. Any tips on what I can do to help protect my other fish? They aren’t showing any signs of sickness.
I got formalin today but when I got home he was already dead. Does this still look like brook? Any tips for what I can do to protect the other fish? They still look fine.
Sorry to see ad I can tell you it likely died from aggression/injury opposed to disease. You will want if you have not already identify the culprit
See the tattered fins? If they looked like that before the fish died, this was tankmate aggression.
It is impossible to say out of water, and post mortem. The fish may have had an illness (since it hadn't completed QT), but agree with @vetteguy53081 and @Jay Hemdal that the most likely cause of death with this fish was aggression. That said you have added a lot of new non-quarantined fish (if I'm remembering the thread correctly) and generally - I would recommend using the QT protocol and fallow period for the rest of the fish. If you cannot do that - Ruby rally pro per directions would be the next best thing IMHO for the rest of the fish. Again - I would watch your parameters closely as well (as you had some ammonia issues up front
