Fish, shrimp and shellfish can be eaten, but fresh shellfish are better, which can avoid polluting water quality. It is best to use small pieces of bait and feed them evenly, so as to improve bait consumption and reduce mutual killing due to food grabbing. According to the characteristics of Oratosquilla oratoria, it is enough to feed 1 time every evening, and the feeding amount is 5% ~ 20% of the parent's weight, which will increase or decrease with the parent's egg holding situation, water temperature, weather, bait type and quality. In the early stage of breeding, the amount of bait can be appropriately increased to meet the nutritional needs of gonad development. Parent shrimps dig holes when they hold eggs, and basically don't eat, so it is estimated that most parent shrimps should reduce the amount of bait when they hold eggs. In addition, after hatching, the parent shrimp turns to grow, and the food intake increases greatly, which also interferes with other egg-bearing shrimps. It is best to lure them out of the pool with cage nets.