This is the second installation of the classification of koi in which we look at the remaining classes of koi. As we discussed in the first part, it is the color, scale and pattern mutations that help to distinguish one class or type from another.
In essence, koi fish are divided into 13 basic classes. It is from here, they split into a myriad of different types. As a general rule, each variety usually has a Doitsu (or scale-less) version and a Gin Rin (or sparkly) scaled version.
Koromo (koh ROH moh)
Meaning “robed,” they are a hybrid koi (a cross between Asagi and Kohaku) wherein the usually darker red hi pattern overlaid on the white body is edged by a blue to create a reticulated net pattern. They are also referred to as Goromo by American Koi enthusiasts.

Kawarimono (kah WAH ree MOH noh)
This incorporates a fairly large grouping as it an encompassing term used to describe non-metallic koi that don’t slot into the other classes. It is the older term used to denote koi with no defined color or pattern. The newer term used to cover all non-mainstream classifications is Kawarigoi.

Hikari Mujimono (hee KAH ree MOO gee MOH noh)
The hikarimono (or “shining ones”) are a group of single-colored metallic koi. The hikari classification means metallic or shiny and mono means one. Muji designates a single or single-solid color. The hikarimuji can be either with or without scale reticulation.
As these koi are one color, it is the body shape as well as color and clarity of the head that determine the quality

Hikari Utsurimono (hee KAH ree oot SOO ree MOH noh)
For all intents and purposes, these are metallic Utsuri and Showa.

Hikari-moyomono (hee KAH ree MOH yoh MOH noh)
These are metallic, patterned koi with two or more colors (moyo meaning multicolored) that are not in the Utsuri or Showa classification of coloration.

Tancho (TAHN choh)
This koi classification has a single hi (red) spot, which is found on the head only. It draws its name from Japan’s national bird, the Tancho crane, which has a red spot on the head.
The Tancho marking can be found on different varieties but when used by itself, it refers to the Tancho Kohaku variety.
Koi will continue to evolve as new varieties and types of koi emerge, so the classification of Koi fish will not remain static. For deeper explorations of some of the current classifications, the Next Day Koi website has them on offer.
The site also offers an easy option to purchase your preferred “dragon fish.” Sourced from some of the biggest and best koi farms in the world, we have also leveraged our high volume of shipping through UPS to bring you some of the most competitive Next Day Air shipping rates in the industry.
Contact one of our representatives to see how we can help you stock your pond.