The aims of the research was to know the growth performance and survival rate of Catfish (Pangasius hypopthalmus) in recirculation system with different water discharge. The method used was the experimental method with 5 treatments and 3 replications. The treatments were P0 = control (without water discharge), P1 = 0,22 litres/second, P2 = 0,33 litres/ second, P3 = 0,36 litres/ second, P4 = 0,5…