Every fish you stock has to be at larger than 1/3 and preferrably 1/2 the size of the largest LMB that is already in the pond if you want to avoid LMB predation of the stockers

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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).