I found my red Severum at the top of the tank today floating on his side. He is beat up from the other fish attacking him. I took him out an put him in another tank. I am not sure whats wrong with him everything else in the tank is normal. From what I have read in the search I am thinking swim bladder. I really dont have to much experience with disease as I try to stay on top of my tanks. Any info to help my lil Sev would be greatly appriciated.