during acclimation and experimentation per day. Five prawn culture treatments were set up with 5 ratios of food concentrations for a period of 60 days. The food ratios of adult fairy shrimp to dry diet in the treatments were 0: 100, 25: 75, 50: 50, 75: 25 and 100: 0. The 6-month old prawns were randomly selected to culture individually in circular black plastic containers containing 20 L of freshwater. Each food concentration was experimented with 12 replicates and the whole experiment (5 treatments) using a total of 60 individual males. Only male prawns were used because the 6-month old females will produce mainly eggs instead of meat. During the experiment, specimens were subjected to the following conditions; water renewal rate of 50% on alternate days; photoperiod, 12 h light: 12 h dark; water temperature 30±6°C.