Yamato Nishiki

Yamatonishiki: The aristocrat of Hikarimoyo is the metallic Sanke known as Yamatonishiki. This variety came on to the market in the 1960s from two distinct sources, the first breeder being Seikichi Hoshino, who took 15 years to develop it. The complex process involved an initial cross between an Asagi and a Kin Kabuto and subsequent introductions of Sakura Ogon blood. A similar fish - Koshi-nishiki - was bred in Yamakoshi by crossing a Yamabuki Doitsu with a Gin Showa. Both are now grouped together as Yamatonishiki.

Metallic skin in Hikarimoyo koi can dull the underlying colors because the light is diffused through them. This results in sumi appearing dark gray rather than black, and red becoming more orange. However, in Yamatonishiki this is compensated for by the platinum skin and finnage, which may or may not carry Sanke-style sumi stripes. The head of this variety is preferably adorned with hi markings in the manner of a normal Sanke.