What predators (and what size are they) are in the pond? What's in there for forage fish beside the BG?

Just trying to get an idea of what size fish that you should be looking at so they don't become instant meals for the predators.

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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).