Why don't you use some of the under weight bass you are culling from your other pond. if you carefully select crappie by sex, you could also use them to reduce the bullheads without fear of reproduction of the crappie. I used this method in a 1/10 acre pond of mine, and in one summer all but eliminated the bullhead.

I'll start treating my wife as good as my dog when she starts retrieving ducks.
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