Silurus japonicus, also known as catfish, silver carp with beard, sticky fish, pond lice fish and young fish, is the most widely distributed fish in Silurus, and can eat foods containing zinc such as milk, chicken, chicken liver, egg yolk, shellfish, peanuts, cereals, beans, potatoes, vegetables and brown sugar.

is the most widely distributed fish in Siluridae, and Hu Ziyu is distributed in eastern Russia, Korea, Japan and the whole eastern Asia. In China, it is widely distributed in the eastern water systems and Taiwan Province Province.