Corey, Check with local large feed stores, USDA, local Game Warden and other land owners to see where stocker fish come from. The catfish are a good option and the hybrids are an open water type fish that will eat bluegill up to a certain size. Largemouth are actually good bluegill population control with no other fish coming in at a close second. I guess I'm saying that the standard stocking ratio of bluegill, LMB, and catfish, etc. has a lot going for it from a management perspective. Running a feeder makes sense when you have the hybrids in a small area and catfish will eat a lot of feed. You can check around but I think the hybrids usually come about 8 to 10 inches. At least that is what a wholesale hybrid dealer told me. I think you will need some sort of brush cover to protect the small fish or the hybrids will clean up on them. I think most everyone agrees about crappie being a no-no in less than 40 acre ponds. Look at the posts here to learn more.