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

Maruten

Round Hi pattern on the head of a Koi. When a Koi has only one Hi plate, and it is a round Hi plate on the head, the Koi is called a Tancho. When a Koi has multiple Hi plates including one round Hi plate on the head, it is referred to as Maruten. The round Hi on the Koi's head resembles a Japanese crane called a Tancho Zuru (crane).

The pattern also resembles the Japanese flag, and Tancho Kohaku are very desirable for this reason. Large round Hi patterns that stay on the head are most desirable. Small, round patterns on the head are called Ko (small) Maruten.

Sourced from Kokugyo Volume II