If you can fish for them with a fly rod, then I think you might have more success.

I'd let the BG swim naturally, to mimic a small BG that was attracted to the food. Smaller BG than what you'd use for a LMB due to the smaller mouth of the HSB.

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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).