Butterfly Koi >> Nishikigoi Judging

Butterfly koi cannot be judged using the traditional criteria of used for koi judging. The standard criteria used in these events have evolved over many years, and they are specifically tailored to rate the characteristics of koi. According to an article in KOI USA magazine, the following characteristics are largely the basis for the unsuitability of butterfly koi in traditional competition:

Conformation - The ideal shape of a koi has been set by tradition to be generously oval. By contrast, butterfly koi are naturally more slender. This difference is amplified by the fact that traditional koi judging is done from a top-down viewing angle.

The Relationship Of Fin To Body – The ratio of fin-to-body is an important scoring criteria in nishikigoi competitions. By design, Longfin embody a ratio that exceeds the standards applied to nishikigoi by 500 to 1000 percent.