Bill C. has it right. IIRC 100 fish in each 4' square cage, feed ring in cage, each cage fed same amount of food by weight per day put into feed ring. 3 month test. No weight of fish done, I believe our Dentist in Ne. did that.

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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).