Study Tategoi Koi

Study Tategoi must be purchased by May 10th! Don't Wait, Purchase Your 5 Tosai Today To Get Free Shipping!

Great Pricing and Selections

This year we will be showcasing Study Tategoi in 2 parts—Part 1 for March and Part 2 for April. For March, we're excited to share:

  • Over 2,000 individual koi
  • 27 tosai varieties to choose from
  • 12 excellent koi breeders

Prices currently range from $49–$120. All are at great prices and randomly selected. These koi will likely sell out fast; so select your favorites!

These koi are all pre-selected by Taro Kodama and are top-quality koi, so requesting to select individual koi is not an option.

🚚 Special Shipping Rates

Buy any Study Tategoi combination of:

  • 1–4 koi to ship for only $99
  • 5 or more koi to ship for FREE

Important: Please give customer service 2 week in advance notice of your preferred shipping date. You can contact customer service at +1 (833) 546-5683 or

Study Tategoi part 2 of this promotion starts April 1st

What is the “Study Tategoi” program?

There are many ways to study koi. A lot of videos and articles are available on the Internet. You can have knowledge on the koi variety, breeder, how they may develop, etc.; but you can never get the experience online.

In order to fully understand koi, nothing is better than raising them yourself in your own pond.  Only by raising these koi in your pond, can you see the color, quality, and how they will grow and develop their beauty. As a hobbyist, you want to get this experience with minimal investment.

Study Tategoi program offers this experience at an affordable price. At Study Tategoi program, we select the breeder of a group of fine quality tategoi (future koi). By offering them randomly picked, Kodama Koi Farm can keep the cost low for you; and you get to enjoy a high-demand bloodline with confidence in quality.

Dive into the Study Tategoi Program for 2023!

We're excited to offer these tosai (koi less than 1-year old) from famous breeders for 2023. This is a great way to affordably access many different varieties of koi all in one spot. Normally full-grown koi sell for high prices, but with the Study Tategoi program (where koi are randomly selected for you) you can affordably get young koi and watch them grow and develop in your pond.

Featured Koi Breeders

We're happy to share Taro Kodama's expertise below about these hard-working breeders. Enjoy!


Mr. Mitsunori Isa

Mr. Mitsunori Isa

I must say that Isa Koi Farm and Dainichi are the two most popular breeders in Japan.

Isa's Showa has many features to enjoy, but my favorite quality is their strong bodies. Even males can build such powerful shapes, just like the Kokugyo prize winner.

Want to learn more about Isa Koi Farm? Click here to view our KOI TALK with Isa Koi Farm.

View Showa

80 Bu Male Kokugyo (Best in Size) prize

2021 All Niigata Breeders Koi Show Grand Champion


Mr. Futoshi Mano and Mr. Shigeru Mano

In the Koi world, it is hard to find somebody who does not know the Dainichi name.

It is synonym of champion quality Koi. As a matter of fact, he won the grand champion at 2020 All Japan Koi Show, the world's no. 1 Koi show.

Because of the quality and the highest demand for the limited supply, we feel very fortunate to be able to obtain Dainichi Tosai and share them with you.

Dainichi are always the first to get sold out. So please do not wait 'till the last minute.

Want to learn more about Dainichi Koi Farm? Click here to view our KOI TALK with Dainichi Koi Farm

Grand champion Kohaku at 51st AJKS (All Japan Koi Show)

Grand champion Showa at 43rd AJKS


Mr. Yoichi Taniguchi

Golden Corn

Mr. Taniguchi is a gifted breeder from south of Japan. We do grow out contests with his Koi every year. So I am sure many of you may be familiar with the quality of his Kohaku and Sanke. He always surprises us with the quality of his Koi. This year, he did it again. This time, it is not Gosanke, but Kawarimono or unique Koi.

It is called "GOLDEN CORN." Please see the transformation pictures of his golden corn. The transformation is nothing but breathtaking. Being in the industry, I have pretty good idea how Koi may turn out as it grows. But the change of this variety is simply unpredictable. Unexpected transformation and unexpected growth (they have DNA of over 40" chagoi) are the highlight of Golden Corn. I do not believe too many golden corn are available in the US yet. I am very happy that we can offer this surprising beauty.


Golden Corn Examples


Photo of Mr. Yoshikazu Otsuka

Mr. Yoshikazu Otsuka

Mr. Yoshikazu Otsuka always have wide range of unique yet high quality varieties in stock such as Goshiki, Goshiki Sanke, Kage shiro Utsuri, Aka Matsuba, Shusui, Asagi etc..

Kage Shiro Utsuri among them is his specialty. In other words, no breeder in Japan breeds this unique variety. We are very fortunate to have them available for our study Tategoi program.


Mr. Joji Konishi





Mr. Kazutka Suda



Mr. Kazuhiro Hirasawa

Mr. Kazuhiro Hirasawa

Mr. Kazuhiro Hirasawa is one of the young leaders among breeders in Niigata. Goshiki from Kanno Koi Farm are definitely of top quality and highly demanded.

The amazing beauty of Kanno's Goshiki that won the mature champion over Gosanke at the recent All Japan Koi Show is still refreshing!

The tosai available for this study tategoi is from an outstanding female parent. She is 85cm (or 34 inches). She had never been shown at koi shows, but she would definitely have won Best in Variety at the All Japan Koi Show for sure.

Mr. Hirasawa says, "Her body and the high quality and bright beni are the reasons why I picked her for my breeding." We are very fortunate to obtain the first generation siblings of this All Japan class Goshiki. Let's share the dream with Kanno Koi Farm.

Mature Champion at All Japan Koi Show 2020

Nogyosai Special Award Winner

Want to learn more about Kanno Koi Farm? Click here to view our KOI TALK with Kanno Koi Farm.


Mr. Shinsaku Sakazumi

Sakazume Koi Farm

Mr. Sakazume thinks Koi breeders must be an artist with breeding skills.

Mr. Sakazume definitely fits into the definition of the breeder. With his pride as an artist and the skill, he became a master of Aigoromo.

Aigoromo is a variety that has indigo on its Kohaku pattern. The contrast of its Ai (indigo) and the show white is beautiful.

As the production of Aigoromo itself is small and limited, I encourage you should not miss this great opportunity to get his world famous Aigoromo.

View Aigoromo View Ginrin Platinum


Mr. Ryu Mano


Izumiya Koi Farm is one breeder with a long history in Niigata. It is well-known that Mr. Ichiro Mano, the founder of Izumiya and grandfather of Ryu, was the top Mekiki (keen eye evaluator) of Koi and has dealt with many high qualtity Koi back then.

He is also well-known that Izumiya is synonymous with Ogon.

No breeder in Niigata can compete with Izumiya when it comes to Yamabuki Ogon. Their quality, body conformation, strong yellow shine, and Fukurin (net skin pattern)—every aspect of Izumiya Ogon is top quality.

We are very happy to share his Ogon tosai with you. Please experience and enjoy what his bloodline can do in your pond.

Izumiya Ogon

Learn more about Izumiya's Ogon with his koi talk video! 


Mr. Shigeyuki Hoshino

Ginrin Yuki Asagi





Tsuyoshi Kawakami



Apple Mango Karashi


Mr. Mitsuhiro Tanaka

Doitsu Showa




2023 Study Tategoi Koi

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