Why do some people say that catfish is the dirtiest fish? What do you think of this?

Most of the catfish sold in the market now are farmed artificially, but I still don't like it very much because of what my colleagues introduced many years ago. For so many years, catfish has hardly been eaten. I wonder if it's the dirtiest kind. I can only tell you some life habits of catfish according to my cognition:

1. The swim bladder of catfish is relatively small and may not be able to support its weight. So catfish live mostly in the water layer under water. In addition, catfish don't swim very much, and there is a lot of mud at the bottom of the water, sometimes even hidden in the mud.

2. Because they live in the bottom of the water, the excrement of all kinds of fish accumulates at the bottom of the water. Catfish live underwater, and it is impossible to be clean.

Catfish is a carnivorous fish. Although there are fish feed, small fish and shrimp, I also like to eat all kinds of fish droppings, and even like to eat some rotten food, such as some dead fish and ducks.

Catfish Catfish is one of the main economic fish in China, and it is also one of the most common fish in freshwater waters in China. Strictly speaking, all the fishes of the genus shirus are collectively called catfish, which are divided into 3 1 family, totaling more than 2,000 different catfish, of which 1 1 family lives in China's sea areas.

Different catfish have different "beards", for example, the above-mentioned catfish, the eight-bearded catfish, and the common catfish in the world is the four-bearded catfish. For example, the common bearded catfish in China is a typical four-bearded catfish. Besides the bearded catfish, the most common catfish in China is the native catfish. The biggest difference between it and the long-bearded catfish is that the young native catfish has six beards, but in adulthood, two catfish degenerate into four.

The blackening of catfish mainly comes from misinformation and witness. The so-called witness, as the author saw with his own eyes at the beginning, misinformation is that some people madly promote catfish "dirty" without knowing the truth. However, nothing is groundless. There must be some factors that make catfish have a "blackening constitution".

Okawaji

Some people often fish catfish in some rivers with poor environment, because there are some pollution and various garbage discharges around these rivers for a long time, and the catfish inside eat all kinds of garbage washed down by the river. So the catfish grown here is dirty and unfit for eating. If you really want to eat, you can keep it in clean water at home for 1-2 months, and let the catfish clean up the dirty things through their own metabolism, so you can eat it with confidence.

As for the pointed-toothed catfish from Africa, also known as Egyptian catfish, the tail of this fish is round, so it is very easy to identify, and it looks completely different from the previous two catfish.

Many people think that catfish is a fish that eats carrion and all kinds of impurities at the bottom of the water, so it can't be eaten.

However, not only catfish, but all fish can be eaten. If they are not poisonous, it mainly depends on their specific living environment and water quality.

Although the local catfish eat omnivores, they have high requirements for water, like clean water and are afraid of light. They generally move during the day and feed at night. The local catfish has a big mouth and only two main whiskers. Tang people have small mouths and many beards. If you can meet a two-bearded catfish in the market, it is worth buying.