Bluegills normal prey is bugs. They have a tiny mouth. I expect they can eat a small fathead but you are going to have a heap of young fatheads. They are very prolific but then I don't know anything about cold water forage. Managing LMB's in anything less than one acre is a character builder. Lots of posts here about it. Take a look. If I wanted LMB's, I would go with all females in a 1/4 acre pond.
