ive trapped a lot of sunfish, crayfish..tons of fun, bread and dogfood are great bait, i take old chip dip containers, the little plastic ones, pop holes in it so the sent can get out, then put dog food and bread in there, drop it in the trap and throw the trap in, have had traps stolen, so be carefull where you put it. also make sure you have a fishing liscence or you could get busted..would suck to go to jail for a few minnows and a crayfish.
