I've done catfish and bullheads in my pond and in my opinion they are not good pond fish. They sit on the bottom and you never see them. Lazy fish that are active at night and will eventually eat all your other fish lol. Maybe try some different species of sunfish, there are plenty out there and they have great personalities and are fun to watch. Bass are the same but try to get them small so they will be easier to convert to pellets.