I caught a very small yellow bullhead catfish in my minnow trap. I would very much like to keep him, but for now putting him in my 55 gallon with the 10" yellow bullhead is out of the question.. I have a 1 gallon with undergravel filter, will this small of a tank stunt his growth if I put him in it momentarily? Also what would be the best food source for this small (about 1 1/2") of a catfish? I never fed the catfish I own until he was large enough to eat algae discs, he just lived under a rock for like a year before I even knew he was still in there. Now he eats minnows and crayfish. Should I just crumble up some algae discs?