Hi, I've had a striped Raphael catfish in my tank for a super long time now. I've never had any issues. Well a few weeks ago I had got some new fish to put in my tank and did everything I normally do when adding new fish. Well pretty much all the new fish I had got died within the first week, then one of my older fish died. No noticable spots or signs they were sick. During this time I think my angel fish were trying to breed so they were more aggressive than normal so I'm not sure if that caused some of the fish to die. I also had a golden loach who was fine until I got the new fish and he got ich really bad along with some kind of fungal infection. I started doing treatments on my tank about 4 days ago and the golden loached died yesterday. I noticed that my catfish looked really sick at this point too when just 2 days ago he was fine. His skin now looked messed up and irritated almost like he was being eaten by something and his "whiskers" are just about gone now. I have a placo in my tank. Is it possible that the placo has been attacking him for a few days to make him look this way? Or does anyone know if the tea tree in the metafix irritate catfishes? I'm at such a loss. The catfish was fine until I started doing the treatments and he went downhill fast! Here's some pictures.