Catfish is not the dirtiest fish, catfish is.

Catfish, also known as bearded fish, has no scales on its body, and there is a layer of mucus on the body surface. It feels slippery to the touch. There are 4 beards on the upper and lower jaws. It tastes good and does not smell fishy. , there are no small thorns, and it is very delicious whether used for braise or soup.

But catfish are called "the dirtiest fish in the world". This is because catfish are very resistant to sewage. Sometimes they live directly in smelly ditches, and their eating habits It is also very complicated. Some dirty foods often become the "dinner" of catfish, such as carrion, the smelly offal of animals, garbage, and even human and animal feces. From this point of view, they are called the "dirtiest food". "The fish" didn't seem to have wronged them.

Introduction to other "dirtiest" fish species:

1. Scavengers

Scavengers also love to eat junk food in the water, such as fish excrement It is a food, so it appears in many aquariums. Just like its name, it cleans the garbage in the water. However, because it eats too much garbage, the parasites and heavy metals in its body exceed the standard, and it has more bones and less meat. It has a strong fishy smell and is not suitable for consumption.

2. Egyptian catfish

The Egyptian catfish has extremely strong vitality and adaptability. Even in hypoxic environments where many fish cannot survive, they can survive tenaciously. After surviving, they can often be seen in dirty waters, such as sewers, sewage pools, etc., so there is naturally no shortage of bacteria, parasites, heavy metals and other harmful substances in their bodies.

3. Pouty silver carp

Once pouty silver carp leaves the water, it is very easy to deteriorate. It has a strong fishy smell and poor taste, and is not suitable for regular consumption.

4. Tilapia

Tilapia has better survival ability than many fish. It often appears in waters with poor water quality, many bacteria and heavy pollution, so they also have Tilapia is known as "garbage fish", and its adsorption capacity is also very strong. Tilapia will absorb various parasites and heavy metal elements, and eating it may cause harm to people's health.

5. Pike

Pike also has another name, called "duck fish", because its snout looks like a duck's bill. Pike has a larger body and is generally The body length is about 60 centimeters and the maximum weight can reach more than 15 kilograms. It is a ferocious carnivorous fish. It mainly feeds on the fry of various fishes. Sometimes it also captures frogs, water birds and even those drinking from the water. Small beasts.

It is precisely because pike eats almost everything that harmful substances in other organisms such as fish and shrimps are basically concentrated on pike, so there are not many harmful toxins in pike.