What is the name of an ornamental cold-water fish with a beard on its mouth?

Koi fish (Cyprinus carpio haematopterus) belongs to CYPRINIDAE, which is the largest family of all fishes, with more than 400 species of/kloc-0. It is a kind of advanced ornamental fish popular in the world today. It has the reputation of "living gem in water" and "swimming art". Because of its low requirements for water quality, miscellaneous eating habits and easy reproduction, it is welcomed by people.

Koi fish Dragon and Phoenix, as a variety of koi fish, was once neglected in the high-standard tasting competition in koi fish, but it was deeply loved by the people and regarded as the top grade. In recent years, koi fish circle gradually began to pay attention to this magical and beautiful variety.

Dragon and phoenix carp is of great ornamental value, which is very suitable for fish tank culture, garden culture and decoration of hotels and restaurants, in order to wish good luck and prosperity. When you look at it in a fish tank, it will be more magnificent if you look up from the bottom. This scene is like Cai Feng, the dragon in the sky, rolling in the air, flying while flying, never mixed in the excitement, clear and spectacular.