Fuji ogon koi, where only The top of the Koi is metallic Orenji ogon koi, that's all orange like a common goldfish, which has a crimson splotch on its back. Goldfish enthusiasts are generally rather fond og the Orenji.glimpse on the styles for examaple Asagi. Asagi are koi that display a blue Web-like sample on the again, complemented by purple or