The main natural enemies are catfish, also known as bearded silver carp, sticky fish, pond lice fish and larvae fish. The distinctive features of this fish are that the whole body is scaleless, the body surface is sticky, the head is flat and the mouth is wide, and there are four beards on the upper and lower jaws. Catfish is not only rich in nutrition like other fish, but also tender, delicious, less prickly, appetizing and easy to digest, especially suitable for the elderly and children.

Silurus glanis is one of the top ten most dangerous fish, and its biggest appearance feature is that it has six beards beside its mouth, which is obviously different from ordinary fish, because the fish creatures that are particularly common on people's dining tables have no beards, which leads to silurus glanis's special fame, because from the appearance, Lu Xun catfish can give people a shocking effect, and silurus glanis is so huge that ordinary people can't hold silurus glanis at all.