Fuji ogon koi, where only The top with the Koi is metallic Orenji ogon koi, which is all orange like a typical goldfish, that has a pink splotch on its back again. Goldfish fans are often rather fond og the Orenji.A blemished or dirty head stands out on all Ogon varieties. Yamabuki will vary in tones of yellow, from a lightweight, lively yellow to