i just got a 29 gallon tank from a friend who is moving out of state. the tank has what looks to be a comon brown bullhead. there is also some sort of bullhead which is black with white/silver spots. can't leave out the pleco hiding behind the filter inlet. anyway the brown is almost 8 inches and u can just imagine how he lurkes around the tank. is he to big for the 29 gallon? i tried giving it to a nother friend who has a big goldfish pond but she wouldn't take it. i generally keep newts which have differant requirements than fish so any information would be helpful.