Bass will eat a LOT of fish, but Bluegill will eat some too. Think of mouth gape and availability of fish to eat. I have caught 10" bluegill on 3" crankbaits. Not small enough for the BG to eat but small enough to nip at it and get hooked. I will catch 6" or larger BG on small minnow crankbaits.

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).