Scavenger fish is native to Latin America, where they can grow a big one, which is an edible fish and is non-toxic. But in fact, exoskeleton fish, with hard exoskeleton, more bones, less meat, and low nutritional value, and because they like to eat fish excrement.

There are many bacteria in its abdomen, and it smells fishy. Because it lives under the water all the year round, the earthy smell is relatively large, which seriously affects the taste. It is conceivable how dirty it is, so it is generally not recommended to eat.

Scavengers were introduced to China through ornamental fish, and they were quickly welcomed because of their easy cultivation, low cultivation cost and simple management. However, after being released, it began to breed rapidly and massively because there were no natural enemies in China.

It likes to eat other fish eggs, and it can eat 3000-5000 fish eggs a day, which leads to the extinction of other fish. It has been flooded in some areas of southern China and is one of the invasive species. Therefore, we must not release it in farming, and it is not recommended to eat it, because its meat is really not delicious.

Extended data:

The scavenger plays a role in purifying water quality because it likes to eat the residual bait and dirt of aquarium, so it is named, also known as sucker fish and sucking catfish, and its scientific name is Silurus asotus, which is native to rivers in South America and can often be seen in Central America.

The fish body is semi-cylindrical, the tail fin is shallow fork-shaped, and it likes weak acidic soft water. The suitable water temperature is above 20℃. The adult fish can't overwinter naturally, and it moves at the bottom of the water body. It has the characteristics of strong adaptability, easy feeding, omnivorous, hypoxia tolerance and high catching rate, which is welcomed by consumers and farmers.

References:

Sweeper-Baidu Encyclopedia