Glossary

A comprehensive list of definitions

Carotene
Definition:

Nutrient responsible for the red colour in Koi. Nishikigoi absorb carotene as a nutrient in order to live. When the carotene stays in the fat of the body surface it appears as a red stain. Because Shiro Utsuri don't have any red in their patterns carotene fed to this variety can cause red staining to appear.