There is no scientific evidence that the river is the dirtiest fish in the world.

Jiangtuan biological classification belongs to the animal kingdom, chordata, scleractinia, catfish, catfish family, shad genus fish, the scientific name of the long-nosed shad, also known as catfish, fat Tuo, fat kingfish, etc. In fact, Jiangtuan is not dirty, dirty and Jiangtuan is very similar to the catfish, especially Egyptian jacks and even in the stinking gutter, sewers and other extreme environment to survive.

Jiangtuan is native to China, widely distributed in the Liaohe River, Huaihe River, Yangtze River, Minjiang River, Pearl River and other waterways, especially the Yangtze River and Minjiang River Basin is the most common, also distributed in western North Korea, prefer to inhabit in the deep and rocky rivers, lakes and reservoirs, and other bodies of water, and in winter in the main stream of the deep water in the crevices of the gravel over the winter, dorsal fin spines and pectoral spines are toxic, the toxicity of all the freshwater fishes is the strongest.

Life Habits of the Gangtuan

The Gangtuan is a benthic carnivorous fish, preferring to inhabit in slow-moving, deep water with many rocks, branches, and other hidden objects underwater, such as rivers, lakes and reservoirs, and is ferocious and voracious.

Mainly aquatic insects, crustaceans, benthic mollusks, small fish, animal carcasses, etc. for food, day and night, depending on the sense of smell and tentacles to hunt, the optimal survival water temperature of 24 ~ 28 ℃, feeding critical water temperature of 10 ~ 32 ℃.