The Ogon Koi: Truly One Of A Kind

Published: 14th October 2010
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If there ever was a famous variety of Koi, it is the Ogon. Simply categorized under the Hikarimono class, the categorization tells little about what makes them special and sets them apart from other fish.

Hikari, meaning Shining and Mono, meaning One, make the Ogon Koi the Shining One. They get this name for being able to mesmerize you with their shimmery and shiny bodies.

Usually, Ogon Koi can be found in three shiny colors: Gold, Metallic and Orange (named Orenji Ogon). There are other varieties too and you will learn more about them. Keep reading!


Apart from the fascinating shimmering bodies of the Ogon Koi, there are other qualities that set them apart from regular fish too, making them popular among fish collector circles. Ogon Koi are usually intelligent and agile too: the combination of beauty and brains in this type of fish is just sublime.

If their prominent shine is not enough to catch people's eye, their tactics in the tank surely will make people stop and look.


These characteristics however have also proven problematic for a few collectors who did not know what they were getting into. Without thinking of rainbows and butterflies only, you have to understand that there are a few drawbacks of having the Ogon Koi too.

Firstly, they have a tendency to grow really obese, because of their rapid growth. They look nice when they grow big and prominent in your tank but can get sick when obese. To tackle that, fish enthusiasts are usually advised to install these devices in the tank that produce an artificial current, keeping the fish in constant swimming motion. This exercise keeps them fit and healthy.


The bigger problem is with the Ogon Koi's color though. The metallic color, which makes the fish rare and expensive, is what makes it kind of problematic for collectors too. As they are usually monochromatic, even a few blemishes or sposts on their skin can make their value plummet and deem them unattractive.


Some Ogon change color though, and you should keep that in mind. There are some classes of Gold Ogon that can change color when in contact with warm water: a shade of black. This is an acquired trait due to cross-breeding Masasuki Kataoka with a Kigoi in 1957.

Yellow Ogons have also been found in some places around the world and have tiny orange specks on their head. You must stay away from them as a collector usually if you only want valuable fish in your tank. Yellow Ogon is usually less valuable.


Not all Ogon hybrids kill the value of the fish though. There is a Platinum Ogon hybrid, the Cream Ogon, which is one of the most expensive and rare fish in the world. It is the result of the cross-breeding between Platinum and Yamabuki (yellow) Ogon.

Mixing Higoi with Yamabuki Ogon also produces the Oraenji Ogon, which can sometimes turn a bright red color, increasing its value a lot.


With these points in your mind before you buy some Ogon Koi for yourself, you must realize that the Ogon Koi is not only rare but one of a kind. It is not only its beauty and grace that makes it special, but also its agility in the tank and ability to perform entertaining tactics for your audience.

All these characteristics combined make the Ogon Koi one of the most popular fishes in Japan, and the national fish of the country.


Travis Taylor is a Koi fish keeper and breeding enthusiast, and enjoys helping others get started in this amazing hobby by sharing his knowledge about the remarkable koi in japanese.

His newest book,"Koi Care Secrets," teaches Koi Fish owners everything they need to know about caring for their pets. http://www.koicareguide.com

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