Bekko koi have Sanke-typed smaller sumi spots on a white, yellow or red body. Different from Taisho Sanshoku, Shiro Bekko has no Hi markings. Bekko is usually produced in process of Taisho Sanshoku breeding.
Major Bekko variations:
Shiro Bekko
It has Sanke sumi markings on the white ground. Clear whiteness of the skin ground is important.
Aka Bekko
It has Sanke sumi marking on the red or orange body. Aka Bekko’s fins and belly should be fully in red or orange. Aka Sanke is a different variety. Aka Sanke is apt to have white on the fins and belly, sometimes even on the body.
Ki Bekko
It has Sanke sumi markings on a yellow body. In fact, Ki Bekko doesn’t belong to the Taisho Sanshoku line. A large good Ki Bekko is very rare.