The fish can be a Tancho Showa, Tancho Sanke, or even Tancho Goshiki Asagi - a Koi with light blue scales on its top and red scales on its bottom Shusui - the partially scaled version of an Asagi Bekko - a white, red, or yellow-skinned Koi with a black pattern Utsurimono - a black Koi with a red, white, or yellow pattern Goshiki - a mostly black Koi with red, white, brown, and blue accents Ogon -