I misunderstood your post. Fatheads may work in that context but I dont think they are big spawners. I would also anticipate the bass fry will have to compete for the fathead fry with the overcrowded bluegill. Bluegill can and will eat fish, I've caught a few on minnows before.

When I stock new ponds I prefer to stock all sizes of bluegill for just this reason. its a little more expensive but results are great. If this were my project I would feed the bluegill like crazy and wait for them to spawn. Once they were large enough to spawn I would introduce adult bass. I have alot of experience with stocking larger bass. Actually, Lusk asked me to write an article about it for Pond Boss. I was just working on it this morning. Maybe the powers that be will revise my terrible writting into something that resembles an article and you will see it in PB soon.

Shan