Catfish is a kind of edible fish, which is more appropriate to be used as ingredients, because they have more nutrition and better taste. However, some people think that catfish are very dirty and that they are "the dirtiest fish in the world". This is because catfish may live in relatively dirty places, and even in some places there are catfish in the foul ditches. Moreover, catfish may eat dirty food, and sometimes even rotten food will be eaten.
However, most catfish are not very dirty. Catfish can be cultured artificially, in the process of breeding, farmers will generally do a good job of changing water, ensure water quality, and provide them with normal food, such catfish will not be very dirty. When buying catfish as ingredients, we must buy good quality, which can be purchased in regular stores. Before eating catfish, it is also necessary to clean the catfish, so that the catfish will not be dirty and can be safely eaten.
Catfish also has a nickname called "garbage fish.". This is related to their living environment and food. Because the living environment of catfish may be dirty, even sometimes living in stinky ditches, the surrounding garbage may be more, or even can be said to live in garbage dumps, which is the main reason why catfish is called garbage fish. In addition, catfish may have garbage in their food, which is also an important reason. Catfish can eat any food, even some rotten food and garbage. Of course, in the presence of other food, they will not eat garbage.
