The most expensive ones are the Showa three colors.
The three colors with red and white stripes on the black background and black spots at the base of the pectoral fins are called Showa three colors. They are called the "Gosanjia" together with the red and white and Taisho three colors, and are the colors of Koi. The representative species, Showa three-color koi, has high ornamental value, is gorgeous and vigorous, and is the essence of koi.
The rare koi include: red and white, Taisho three colors, Showa three colors, Bieguang, light yellow autumn green, gold, patterned skin light carp, gold and silver scales, red top and so on. Extended information
Koi (Cyprinus carpio haematopterus) biologically belongs to the family Cyprinidae. There are more than 3,700 species of cyprinid fish in 210 genera in the world. It is a high-end ornamental fish that is popular in the world today. It is known as "living gem in water" and "swimming art piece".
Morphological Characteristics
Koi has a strong physique, bright colors, changeable patterns, and majestic swimming styles. It has extremely high ornamental and breeding value. Its body length can reach 1-1.5 meters. Koi are distinguished by their different colors, patterns and scales. Among them, butterfly koi was only successfully bred in the 1980s. It is famous for its long and smooth fins. It is actually a hybrid between koi and Asian carp, and is not a true koi.
Reference materials
Koi_Baidu Encyclopedia