Note: Creating this type of optimal habitat will benefit all your koi, from your Utsurimono to your Bekko and beyond. VI. Understanding Tancho Koi Behavior While tancho koi can be kept with other fish, it’s important to select compatible tankmates to ensure a peaceful and harmonious environment. Avoid keeping them with aggressive or nippy fish that may damage their fins or harass them. What is the Cost of Tancho & Where to Buy Tancho? Tancho tend to be more expensive fish, with metallic Gin Rin Tancho being particularly pricy. randychiu / CC BY-SA 2.0

Lee, S.D., Jablonski, P.G. & Higuchi H. 2007. Effect of heterospecifics on foraging of endangered red-crowned and white-napped cranes in the Korean Demilitarized Zone. Ecological Research 22:635-640.The skin quality and coloration of a tancho koi fish are crucial factors that contribute to its overall beauty and value. Look for fish with vibrant and evenly distributed colors. The white base color should be clean and free from blemishes or any discoloration. The red spot on the head should be prominent, well-defined, and ideally rounded in shape. Occasionally, losses at the nest occur to some of the above predators. Introduced American mink on Hokkaidō are one of the most successful predators of eggs and nestlings. [36] Also, immature and unwary subadult or even adult cranes may be ambushed killed by red foxes in Japan and leopard cats in South Korea, though this is rare reports, especially with adults. [37] [38] More often, these birds can easily defend themselves by using sharp beak or just fly away from danger. [39] Luo, Jinming, et al. "Trace element enrichment in the eggshells of Grus japonensis and its association with eggshell thinning in Zhalong Wetland (Northeastern China)." Biologia 71.2 (2016): 220-227.

Tancho Kohaku: This is the most common type of tancho koi. They have a pure white body with a single, round red mark on their head.Tancho Specific Judging Guidelines In Tancho Showa, some judges prefer the Sumi to exist outside of the Tancho spot, while others don’t mind if they overlap. KoiQuestion / CC BY-SA 2.0 Tancho koi fish are known for their inquisitive and social nature. They are curious creatures that love to explore their surroundings, interacting with other fish and even with us humans. You’ll often find them swimming gracefully in groups, creating a mesmerizing display of color and movement. Tancho koi cannot be bred selectively. The red mark on their head is a recessive gene, meaning that both parents must carry the gene for it to appear in the offspring. Even if both parents are tancho koi, there is no guarantee that all of their offspring will be tancho. a b c d e f g h i BirdLife International (2021). " Grus japoninensis". IUCN Red List of Threatened Species. 2021: e.T22692167A175614850. doi: 10.2305/IUCN.UK.2021-3.RLTS.T22692167A175614850.en . Retrieved 1 January 2022. Please note that we use a special brand of Akasu (red vinegar) to make our sushi rice (shari). We do not use brown rice.

The results of this rudimentary genetic prediction show that the offspring have a 25% chance of being entirely red, a 25% chance of having a red head and a white body, a 25% chance of having a white head and red body, and a 25% chance of being entirely white. This only takes into account two factors – there are many more involved, as mentioned in the previous paragraph, so certainly do not take the above figure as an absolute measure by any means. This is just to give you an idea that obtaining exact features and varieties, like Tancho, is often quite difficult. Kataoka, Haruka, et al. "Metabarcoding of feces and intestinal contents to determine carnivorous diets in red-crowned cranes in eastern Hokkaido, Japan." Journal of Veterinary Medical Science (2022): 21-0516.Japanese Varieties: We continue to feature essential, superior fish from Tokyo, Ishikawa, Hokkaido, and more. If you are looking for a beautiful and unique koi fish, a tancho koi is a great option. These fish are sure to turn heads and bring you years of enjoyment.