Morphological characteristics of grass goldfish

1. Grass goldfish: commonly known as red crucian carp or golden crucian carp, with spindle-shaped body, no forked tail fin and normal back, abdomen, chest and buttocks fins. Strong physique, strong adaptability, wide appetite and easy maintenance. Besides red, there are red and white flowers and five flowers. It is suitable for large-scale breeding in parks and natural waters, and can also be raised in courtyard tanks and aquariums.

2. Dovetail: The body is short and the tail is particularly long. The caudal fin is about 2/3 or 2/ 1 of the total length of the fish. The tail fin is forked like a swallow's tail, hence the name dovetail. It is a more evolved fish species than grass goldfish. Lively and easy to raise. In terms of color, in addition to red and white, red and white, there are also glass flowers and colorful. The existing varieties are Papilio, Papilio and so on.

The tail fin of grass goldfish can be divided into long tail and short tail, and the short tail is generally called grass goldfish; Long-tailed grass goldfish or swallowtail fish (the tail fin of some foreign species is similar to that of domestic swallow, hence the name). Britain, America and other places are called "comets". The long-tailed grass goldfish has slender fins, which looks like it is floating in the wind, and its swimming posture is very beautiful. Suitable for keeping in an aquarium and enjoying from the side. Grass goldfish is the ancestor of all goldfish. Like crucian carp, it has dorsal fin, forked caudal fin and simple leaves. The tail fin of grass goldfish can be divided into long tail and short tail, and the short tail is generally called grass goldfish; Long-tailed grass goldfish or swallowtail fish (the tail fin of some species in China is similar to the tail feather of domestic swallow, hence the name). Britain, America and other places are called "comets". The first discovery of Carassius auratus was in the Jin Dynasty (265-420).