Alright I'll avoid the heat. Rivercats I think it has an internal parasite because I noticed that it was not eating barely anything compared to what it had. It used to immediately go nuts for food. Then I noticed it was swimming weakly and letting the current move it around. It has been weirdly just staring at the surface like it was dazed. It also has taken to hiding more, which it never did before. I also noticed some reddening or swelling in the gills area. I can see the reddening in him a bit because he is a thin white color. There were no recent additions to the tank to scare it and it was the king, even though it is young. I have had it isolated for a week and I haven't noticed any change in it's behavior. Luckily nothing negative has happened. It can't be ammonia poisoning and there are no external signs of any other disease. It's weird because when I try to feed it, it hovers just 2 inches from the food and stares at it like it really wants it. It just never goes for it.