I am noexpert either But I would love to start a flathead 1 acre catfish pond. If It were me I would stick with flathead only and forage bluegill coppernose, and What about Black Crappie? Both of those together would keep the Flatheads nice and FAT. The main goal is after all A--- Flathead pond!!! A flathead is a big predator and eats fish no matter if it is other catfish, bass, or anything else alive. So I think a flathead only pond along with a heavy forage is the key. Now if crappie and coppernose BG are too much, then What about just Crappie? They do have enormous offspring s. What say you pond experts?