1, goldfish

After several generations of folk artists carefully selected, from the initial single-tailed golden carp, gradually developed into double-tailed, triple-tailed, quadruple-tailed goldfish, the color is also from a single red, and gradually formed a red and white flower, five flowers, black, blue, purple, etc., the body shape is also from the narrow fusiform development of the ellipsoid, leather ball, etc., the varieties of the single golden crucian carp, the development of dozens of varieties. Such as dragon eyes, Chao Tian Long, blisters, lion head, tiger head, pompoms, pearl scales, crane red, etc..

2, saltwater fish

Saltwater ornamental fish mainly from the Indian Ocean, the Pacific Ocean in the coral reef waters, many varieties of strange body shape, colorful body surface, rich in change, good at hiding, with a kind of primitive and simple and mysterious natural beauty. Common production areas are the Philippines, Taiwan and the South China Sea, Japan, Australia, Hawaiian Islands, India, the Red Sea, the east coast of Africa.

3, the fat carp family

The traffic light adult fish body length of 4 centimeters. The whole body shrouded in lime green luster, from the head to the tail there is a bright blue-green band, the back half of the body below the blue-green band and a red band, the abdomen blue-white, red band and blue band through the whole body, luster. In different light or in different environments, its color bands are darker and lighter.

4, Killifish

Also known as anchovies, because there are several small blue round spots, or lines on the abdomen, floating like a peacock and so named. Peacock fish is gentle and lively, like in the middle and upper layers of the water swimming for food, on the water quality, water temperature requirements are not high. The shape of the caudal fin is different, and the males are colorful and changeable, with brownish-green body color, red, blue, purple and yellow, like a rainbow.

5, Cichlidae

Also known as swallowfish. The body is rhombic, extremely lateral compression, the rear edge of the caudal fin is straight, the dorsal and anal fins are extended backward, symmetrical up and down, like an open sail. The ventral fin is extremely long and filiform. From the side look like flying swallows in the air, so it is also known as swallowfish.