They can't hang out there if they can't breathe.

Fish, no matter what size, will hang out where they are the most comfortable. Food within easy reach without expending too much effort, correct temperature, correct amount of light, and O2 levels all come into play. It's all a matter of balance.

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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).