We gave our prey (fathead minnows, bluegill, shell cracker) a 6 month head start on our bass and in hindsight I'm really glad we did. Our feeder is currently swarming with bluegill of all sizes and when I walk around the pond I can see bluegill in nearly every inch of shallow water.
Creating an all you can eat buffet for your bass takes some patience but is well worth the wait.