Tank 4 = 60 Fish Tank 5 = 80 Fish Tank 6 = 60 Fish Tank 7 = 80 Fish Tank 8 = 80 Fish Tank 9 = 60 Fish Feed preparation The fingerlings were fed with locally formulated feeds of crude protein 30%. The constituents of the feed used included wheat bran, rice polish, Rastrineobola argentea fish meal, and cottonseed cake.