Aquatic insects, its larvae, crustaceans, small molluscs and small fish are the main foods of Jiangtuan fish. Most of the grouper fish lurk in the bottom of the water or in crevices during the day and go out for food at night. But also in the middle and lower water when foraging.

Grouper is a bottom fish. Often live in the river bend waters with slow water flow, deep water depth and many stones. Grouper is a warm-water fish, with a survival temperature of 0 ~ 38℃, a growth temperature of 15 ~ 30℃, a pH range of 6.5 ~ 9.0, and an optimum pH of 7.0 ~ 8.4. It is not resistant to hypoxia. When the dissolved oxygen in the pond water is as low as 2.5 mg/L, its head will float ... Long snooker lives on the bottom of the sea, likes clustering and is afraid of light.