Fuji ogon koi, where only The pinnacle from the Koi is metallic Orenji ogon koi, which happens to be all orange like a standard goldfish, with a purple splotch on its again. Goldfish enthusiasts tend to be pretty fond og the Orenji.A blemished or filthy head stands out on all Ogon kinds. Yamabuki will vary in tones of yellow, from a light, vivid ye