Silver Pectoral

Silver Pectoral

Koi Types and Varieties

Koi Varieties

Is it any wonder that more and more people around the globe are finding themselves drawn into the aquatic realm of the Koi?

Following the historical growth in popularity in the beginning of the twentieth century, from its humble origins as a simple food source in China to a captivating object of beauty in Japan, the Koi has established a special place in the hearts of many resulting from its ever-increasing range of color, pattern and scalation.

These days, what was once a fish with limited variety, has become a cherished possession, resulting from an explosion in the flourishing breeding and cross-breeding programs world wide. These breeding programs have created some of the most stunning and spectacular Koi specimens ever seen.

When the magical Koi first grabs your attention, you need to develop a basic comprehension of the Japanese Koi Jargon to appreciate the 13 classes of Koi that have been established through the years. Each of these classes (and their sub-classes) use Japanese nomenclature to describe the characteristics of Koi.

In the simplest of terms, there are three key traits, primarily color & color pattern, brilliance and scale type. The lasting appeal of koi is that each one is unique - no two are the same. One can find brightly colored koi and koi with subtle, muted tones. One can find koi covered from top to bottom with scales and others that are scale-less. There are koi that are metallic, or sparkling, or matt, and Koi that are single colored or multi-coloured.

For the beginner, the most important points to know are:
Color and Color Pattern - in the early days there were just one or two colors available. With the passage of time and extensive breeding, there are now a myriad of colors to choose from, and whilst the colors available commonly include shades of red, orange, yellow, green, blue, indigo, white, cream, black and grey, there are the added choices of color patterning and combination. For example, the solid base color might have one or more different colored markings. These markings may extend over most of the body or develop on one part of the body only. Alternatively, the fish might be one solid color with no markings at all. The choices are astounding!

Brilliance
Non-Metallic Koi - are grouped based on their foundation color. These groups are then further broken down based on their accent colors and special features. Each color, marking type and feature has a Japanese name. Therefore each koi variety name can be made up of multiple parts to specify each of these characteristics.

Metallic Koi -  are grouped depending on the reflective nature of their scales. Metallic Koi are also identified as Hikari Koi from the Japanese word "Hikari" meaning "Shiny". These Koi are further divided into three groups comprising of the Hikari Muji (single colored and shiny), the Hikari Utsuri (tri-colored and shiny) and the Hikari Moyo (shiny with platinum and either yellow or red).

Scale Types
Doitsu refers to either the leather-skinned or scaleless Koi, or to the mirror-scaled Koi which has noticeably large scales along each side. Doitsu can appear on both Metallic and Non-Metallic Koi but are rather rare. "Doitsu" comes from the Japanese word for "German" after the German Carp.

KinGinRin refers to those koi with extremely reflective scales. These reflective scales are very popular and have been bred into many of the varieties of Koi. Placement of these scales can further split the Koi into the KinRin (Gold) where the scales are over a red base color, or the GinRin (Silver) where the scales are on top of a black or white foundation color.

Koi Classes
Within the Metallic Koi Category there are 9 main classes and within the Non-Metallic, there are only 3. However, within each class there are frequently several sub-classes.

Non-Metallic Koi Classes include:

Asagi - blue back with a red belly / the blue scales of the back have white edges that create a lattice appearance / the cheeks and pectoral fins are red and the head is light blue to white

Bekko - opposite to the Utsuri, the Bekko has a solid base color of red, white or yellow with black markings (sumi). The head of a Bekko should always be clean with no sumi markings.

Kawarimono - this class includes all the varieties that can't be categorized into any of the standard koi varieties

Kohaku - the most popular of the koi varieties, is a two color, non-metallic koi with a white base color topped by red (hi) markings positioned evenly over the body but not beyond the lateral line and not on the fin or tail

Koromo - literally means "robed" or "clothed". The Koromo is a cross-bred koi from Asagi and the Kohaku. It has a  pure white foundation with the scale reticulation of the Asagi only visible in the red patterned areas

Sanke - a white base skin color with red (hi) and black (sumi) patterns scattered evenly over the body.

Showa - black base skin color with red and white markings.  The original Showa had more black and red than white, however, more recently, the amounts of white have increased, making them more tricky to differentiate from Sanke's. Unlike the Sanke, the Showa must always have a black pattern on its head.

Tancho - named after the Tancho crane bearing a single red spot atop its head, the Tancho class of koi is made up of the Kohaku, Sanke and Showa varieties, which similarly exhibit a well-positioned red spot (hi) on the head.

Metallic Koi Classes include:

Hikari Muji - these are Koi of one solid, metallic color. There are two sub-groups being the Matsuba, in the color of gold, silver, grey or orange and with a pine cone pattern. The other sub-group is the Ogon, again a solid, metallic color in either gold, silver (platinum), orange, or red and white, but devoid of the pine cone pattern. The red and white Ogon is essentially a Metallic version of the Kohaku.

Hikari Utsuri - metallic version of the Utsuri or Showa - that is, metallic red, black and white.

Hikari Moyo -  multi-colored, platinum Koi with either red or yellow.

 

About the Author

Are you looking for a realistic, user-friendly way to Create & Maintain a Stunning Koi Pond for Koi Fish Varieties to Suit your Budget, Time and Spaces? Get more tips and advice here today. While you are there, you can sign up for the Free Email Course on Complete Koi Fish Pond Construction Tips and Koi Maintenance. This free step-by-step mini-course is designed to teach you all of the essentials on purchasing, identifying, keeping and breeding Koi fish, as well as planning, building and maintaining your Koi pond.

My neon gold variatus won't eat?

I bought a neon gold variatus at the store today. I also bought another variatus. The other one is adapting well to the tank, but the neon gold isn't moving around much and won't eat with the other fish. Also, she has 1 pectoral fin that is practically non existent - similar to Nemo's in Finding Nemo. The tank is 20 gallons. Is this fish depressed? Should I return it to the store?

Current tank mates: 5 tetra (3 serpae 2 red eye), 1 silver molly, 1 red tailed variatus, and a feeder goldfish some crazy girl left on my doorstep so I put in my tank for better or worse. Could it be there are too many top feeders??

From the nature of your questions, you are a novice and you have already suggested your best option. Take the fish back. It is possble to isolate and treat such a fish, but wth such a common species, why bother? It will cost you more to "heal" it then to replace it.

The feeder gold fish do not belong in ths aquarium. Eiher give them to someone with a snake or a pond. They require a huge tank and are very messy fish. They require lower temperatures.

One other thing you could do with the feed goldfish, buy a kiddy wadding pool and a pond size foam filter. Do not flush it down the toilet. We don't need any more goldfish in our waters.

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