The aim of the study was to obtain the best dose of viterna plus suplement added to feed for growth and survival of tambaqui fish (Colossoma macropomum) with recirculation system. This research was using experimental method by completely random design (RAL) one factor with five treatments and three replications. The treatments were: P0 (without viterna), P1 (viterna 14 mL/ kg of feed), P2(viter…