3 years of experience with Tilapia . 1st 2 years couldn't find nearly enough, 3rd year at 15 lbs per acre , what an improvement. Either stock them, or don't , don't mess with less than 12 lbs per acre , I wish I could find at least 15 lbs per Acre, would prefer 20 -25 lbs . They have been wonderful, both forage and FA control