Generally, a catty of snakehead can eat two or two crucian carp, and a catty can eat four or two crucian carp at most.

Black fish generally eat frogs, small crucian carp, loach and the like. The maximum food intake can reach 60% of its own weight. The snakehead does not take the initiative to attack, but relies on small fish such as hiding the bottom of the water to come to the door.

Snakehead is the common name of snakehead [lǐ], also known as snakehead, raw fish, Cai Yu, snake fish and salamander. Snakehead is fierce, fertile and has a huge appetite. It can often eat all the other fish in the lake or pond.