What fish in the river has a point on its dorsal fin?

Small fish with black spots on the dorsal fin are usually thrushes.

This kind of fish is a small freshwater fish, which has a miscellaneous diet and usually feeds on diatoms and other debris. Like to move in slow or still water, generally rely on freshwater mussels for reproduction, and their life span is relatively short. Most of them live at the bottom of the lake or in the shallow waters of rivers, and only a few people like to visit collectively in rocky streams.

Ornamental value

Rags are small in size, graceful in posture and bright in color, and can be cultivated for ornamental purposes. They are famous local ornamental fish in China. In 1960s, the grouper entered Europe as an ornamental fish, and was called China Rainbow. In the early 1990s, the Japanese Emperor sent people to Taihu Lake in Wuxi to look for this kind of fish, which is an ornamental fish with great market potential.

Whenever the breeding season, the male partridge in estrus is particularly bright and attractive, and it is a veritable butterfly in the water; The female fish drags a long spawning tube during the breeding process, which is more unique with the company of the male fish.

Pomfret in the aquarium is easy to raise, and it is also very simple to raise, so general feed is ok. The cultivation of pomfret is the biggest problem in the cultivation of ornamental fish. Because of its special breeding habits, it is necessary to put some mussels at the bottom of the fish tank during its breeding period so that it can lay eggs and breed.