The Tilapia that you stock should be large enough to avoid predation.

I've seen 9"-10" Tilapia spawning in my pond, but didn't catch any to get a weight. Hopefully Rex will see this.

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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).