I have 2 raphael catfish in my 55g, and one of them seems to be a lot fatter then the other. I drop a few sinking wafers in each night, and I have some crayfish too that eat them so I drop in around 5 or 6. The catfish are only about 4 inches long right now. So could the one catfish be eating all the wafers before anyone else gets any or should I be thinking theres something wrong with the catfish. I never see them during the day, but I see where they hide. Here's a picture of it. 
If it is just overeating is there a way I can get it to stop eating everything lol
If it is just overeating is there a way I can get it to stop eating everything lol
