Fuji ogon koi, where only The top of the Koi is metallic Orenji ogon koi, that is all orange like a typical goldfish, that has a purple splotch on its back again. Goldfish enthusiasts are often really fond og the Orenji.Also, beware of any blemishes or scales of a unique colour than The remainder. These will ruin the overall uniform look of a Sorag