Blackfish is a kind of freshwater fish, also called grass carp. Like other fish, snakehead is covered with scales. Fish scale is a structure that protects fish and reduces water resistance, which can help fish swim more flexibly and efficiently. At the same time, fish scales can also respond to changes in the external environment and provide protection.

Although snakehead has scales, it can be removed during cooking for better eating. Of course, if you don't mind the existence of fish scales, you can keep them and enjoy the taste of fish skin.