Dear landlord, catfish is a carnivorous and aggressive fish. You can first kill the chicken liver and the chicken heart (fishy smell) to make a nest, and then hang the chicken liver (tender than the pig liver) with the hooks of meatballs 18 to 26 for fishing. Because finely killing the nest is to lure the fish, you can catch the whole fish when you are satisfied. You can also use loach frogs, or you can hope to go upstairs.