The other reason why I would feed is that all of the commercial fish farms where I buy fish, feed their fish, starting with fry powder even though they have green water with a secchi reading around 18". I have to assume that if it wasn't cost effective to feed the fish, then they wouldn't. Why spend the money on equipment, labor and food if there wasn't a ROI?

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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).