1, Octopus with different living habits mainly lives in the middle and lower layers of rivers, lakes, reservoirs and pits, mostly in coastal areas, mostly hiding in grass, rocks or deep water during the day, and generally foraging frequently at night. After autumn, living in deep-water activated sludge overwinters, and the feeding degree is also weakened. Catfish mainly live in rivers, lakes and water.

2. The main difference between silurus glanis and catfish with eight whiskers is that one has six whiskers and one has eight whiskers. There are also some differences in body shape.