Fire carp has a rotating body, a lower mouth and a pair of nose and chin whiskers. The gill rake is short and the abdomen is round. Scales are big and round. The lateral line is obvious and slightly curved. The caudal fin is deeply forked. Light red, orange red or golden yellow.
The body color of red koi fish has red patches on a white background, and red and white set each other off. Red stripes are distributed in front of the head, but the mouth is not close and the eyes are not left on both sides; A white split on the back shoulder of the skull is called "shoulder fissure", and a red patch on the tail stalk is called "tail knot". Erythema rolling down beyond the lateral line and extending to the abdomen is called "abdomen rolling".
2. Different varieties
Fire carp is a variety of carp, which is widely distributed. Red carp will appear in carp herds all over China and can live in various waters. On the basis of red carp, the bred varieties are glass red carp, purse red carp, Xingguo red carp, Qingjiang red carp in Hubei and Oujiang colored carp in Zhejiang.
Red koi fish can be divided into the following varieties according to the number, shape and position of stripes on its back: red and white koi fish II, red and white koi fish III, red and white koi fish IV, red and white koi fish with lightning stripes, Fuji red and white koi fish, Palace Sakura koi fish, Golden Sakura koi fish and so on.
3. The playing time is different
The early koi fish varieties, pale yellow, red carp and Bieguang koi fish, were the hybrids of 19 which only appeared in 1980s.
1830- 1850 produced a hybrid variety of red, white and koi fish, which was recorded as the earliest red, white and koi fish.
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