Put 2,000-2,500 fry of 10- 15 cm per mu, and interplant 200-300 silver carp of large size.

Black snakehead has low requirements for pond water quality, and can be cultured in high density, with high yield and high benefit; Black snakehead grows fast, and the fry propagated in early spring can develop into commercial fish in the same year; Snakehead has low incidence and high survival rate; The transportation of adult fish is simple and convenient for long-distance sales.