You might want to look into a Fyke Net. With that density of CNBG, I don't know what you will need to do to keep the water quality acceptable. (12,500 CNBG/ac)

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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).