All the Bullhead species seem to reproduce fairly well in pond and lakes, but the sportsman catfish such as the channels, flatheads, and blues need some sort of cave or caveren with a sandy bottom to spawn. Place old concrete or corigated pipes about 1 to 2 feet in diameter in about 2 to 3 feet of water all along the bank and sides of the lake.
Fill these pipes about 1/3 of the way with sand the male a female cat (channel, Flathead or blue) will mate in these tunnels. The male will gaurd the nest and usually spends the most time there. Spawning season is usually from mid april to late July..
hope this helps..
