In winter, you can catch wheat-ear fish by fishing in the net in the lake with wheat-ear fish, especially in the ice-breaking fishing in Heilongjiang rivers in winter, and you can catch one or two hundred kilograms of wheat-ear fish in one net.

Maisui fish, also known as arhat fish, hemp tender fish, and fish with stolen mouth, is slightly flat and rod-shaped, with a slightly pointed head and a small upper mouth. The lower jaw is slightly longer than the upper jaw, with a thin lip, a stratum corneum at the edge of the upper jaw, a small mouth, a short dorsal fin and no hard spines.