Japanese Koi Fish

Your guide to the different varieties and appreciation of these wonderful fish!

Chris on Koi | Glossary | Varieties & Appreciation | Koi Shows & Judges | Koi Breeders

This website is dedicated to helping you understand the different varieties of Koi as well as on how to keep them

   Pond Dynamics Intro - Water

   Pond Dynamics - Oxygen

   Pond Dynamics - pH

   Pond Dynamics - Temperature

   Pond Dynamics - Ammonia

   Pond Dynamics - Fish & Man

   Sand Filters - Intro

   Sand Filters - Flow rates

   Sand Filters - Conclusions

   Pond Depth - Myths

   Pond Depth - Facts

   Water Temperature and Koi

   Montmorillonite Clay and Koi

Koi Varieties

Go Sanke Varietals

   Kohaku

   Sanke

   Showa

The rest

   Asagi

   Goromo/Koromo

Glossary of Japanese Koi Terms

Koi Shows

   Kate Mc Gill on Koi Shows

   Kate McGill & Koi Show Judges

   Kate McGill - as a Koi Show Judge

Koi Appreciation

   What makes a serious Koi serious

   Appreciation for the Koi owner

Koi Breeders

    Takeda (Yamatake Koi Farm)

Keeping Koi

    Happy Koi Website

Iroage

Colour enhancement. Because Nishikigoi can not create the red pigments within their bodies it is necessary to feed foods with carotene to maintain the red colouration in Koi that have Hi plates. You can say 'the Koi needs Iroage' and it would mean that the Koi needs to increase its colour or that it should be fed colour-enhancing food.

Sourced from Kokugyo Volume II