Study Tategoi Part 2

Dive into the Study Tategoi for 2021 Part 2!

We hope you enjoyed part 1, but we are excited to offer you even more tosai from some of the most famous breeders in Japan. 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.

Great pricing and selections

Welcome to part 2 of our Study Tategoi Promotion, we're excited to share:

  • Over 1,000 individual koi
  • 16 tosai varieties to choose
  • 10 excellent koi breeders

Prices currently range from $49–$99. All are at great prices and randomly selected. These koi will likely sell out fast; so select your favorites!

🚚 Special shipping rates

Buy any Study Tategoi combination of:

  • 1–4 koi to ship for only $79
  • 5 or more koi to ship for FREE

Important: Available to ship as soon as April 14th, Miyatora Koi will be available to ship on April 26th. However 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 info@kodamakoifarm.com

Study Tategoi Part 1 Continues!

Have you had the chance to check out part 1 of our study tategoi promotion? There are still many different varieties of high quality study tategoi available for you to purchase. Check out part 1 and see what is left!

Featured koi breeders

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

Mr. Teruyuki Hiroi

Marusaka Koi Farm



Marusaka Aya Wakaba

Mr. Ryu Mano

Izumiya Koi Farm

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.
It 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.

Izumiya Ogon

Mr. Kazuhiro Hirasawa

Mr. Kazuhiro Hirasawa

Kanno Koi Farm

Talk about Kanno Koi Farm, and Goshiki will automatically come to mind. The mature champion at the last All Japan Koi Show was simply breathtaking.

However, Goshiki is not only what Kanno Koi Farm is proud of. His Kikusui is also jaw-dropping beautiful.

The bright red/orange lays out beautifully over the clean, shiny, pure, white skin. The harmony of the platinum and the red describe them as nothing, but living jewels

View Kikusui

Best in Size Prize at 50th All Japan Koi Show
Best in Size Prize at 36th All Japan Young Koi Show

Mr. Hideo Hoshino

Yamanaka Oya Koi Farm

Yamanaka Oya Koi Farm is known as a creator of Aya Wakaba. The base variety of Aya Wakaba is Midorigoi.

Few people breed Midorigoi in Japan. It is plain, but rare and beautiful.

This may be the only chance for you to get Midorigoi this year.

View Midorigoi

Mr. Hoshino, selecting high quality Midorigoi for us

Mr. Hoshino, selecting high quality Midorigoi for us

Mr. Takayoshi Omosako

Mr. Takayoshi Omosako

Omosako Koi Farm

It is not an exaggeration that the last All Japan Koi Show was a show for Omosako Koi Farm. You can take it as granted that their Shiro Utsuri won top awards, but their Kujyaku and Gin Matsuba also took many koi lovers' breath away.

The beauty of the superior champion Kujayku and 80 bu Botan prize winner Gin Matsuba made a huge milestone in the history of Japanese Koi.

Right after the koi show, I begged Mr. Omosako to share some of his Kujyaku and Gin Matsuba for our U.S. customers. We are very fortunate to get the same bloodline Kujayku and Gin Matsuba.

Kujayku and Gin Matsuba are all available for our U.S. customers thanks to Omosako Koi Farm, but the supplies are limited. Please do not wait.

View the Kujyaku View the Gin Matsuba


2020 All Japan Koi Show Superior Champion

35th All Japan Youth Koi Show Best In Variety

Mr. Kenji Tani

Tani Fish Farm

Based by Narita International Airport, he has been dealing and breeding high-quality Koi that meet the demand of international Koi lovers.

This is our first time to introduce his Koi to our U.S. customers.

What we want for a quality Platinum is the pure and clean platinum color and strong shine.

You would very much enjoy Mr. Tani's Platinum Koi!

View Chagoi View Ginrin Changoi View Platinum

Tani Platinum

Mr. Toshinobu Ikarashi

Ikarashi Koi Farm


Succeeding one of the most distinguished koi farms from his father, the late Kazuto Ikarashi, he is taking the farm to the next level. His father was a top breeder in Niigata like the late Mano, founder of Dainichi Koi Farm. His Gosanke won many champions. Maintaining the quality of his father's legendary gosanke, he started his new challenges. One of them is the Ginrin Aragoke.

Ginrin means diamond scales. Aragoke means rough or large scales. If you think of doitsu varieties like Shusui, you see most of the scales are even and regular size. that is because breeders intentionally cull out those ones with odd size scales. Aragoke was something breeders was avoiding for Doitsu varieties. However, he went the opposite way. He rather tried to put larger scales on the body and filled them with beautiful glitters. You see his Ginrin Aragoke has so many type of patterns and colors, but what is in common is that they are all high quality Doitsu with large ginrin scales.

Now his challenge gradually gains the popularity outside Japan, especially in Europe. Kodama Koi Farm is very proud to introduce his Ginrin Aragoke and its Tosai at the first time to the US. You can not get his Ginrin Aragoke tosai anywhere else. Please do not wait. We have only 50.

View Ginrin Aragoke


Ikarashi Ginrin Aragoke

Ikarashi Ginrin Aragoke

Mr. Katsunori Miya

Miyatora Koi Farm


Mr. Miya is a humble, hard working Koi breeder of the established Koi Farm with three generations. Any Koi from his farm meet the high quality criteria. We are very happy to offer his fine quality Tosai with our study Tategoi program as the first time.

Miyatora Koi will be able to ship on April 26th.

View Showa View Taisho Sanke View Doitsu Showa View Hi Utsuri



Miyatora Taisho Sanke, Hi Utsuri, Doitsu Show and Showa

Mr. Shintaro Hirasawa

Hirashin Koi Farm

Mr. Hirasawa is a stubborn-looking but very hard-working Koi breeder in Niigata, Japan. We are very lucky that he made his beautiful Kin Matsuba available for our customers.

Kin Matsuba is also called as Ki Matsuba Ogon. It is basically yamabuki Ogon with pine cone pattern. When it is young, the pine cone may not appear strong. As it matures, the spots will get darker and be solid. Add his Kin Matsuba to your collection

View Kin Matsuba


Hirashin Kin Matsuba

Mr. Yoichi Taniguchi

Taniguchi Koi Farm

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. 

View Golden Corn


Golden Corn Examples

Mr. Mikinori Kurihara

Kurihara Koi Farm

His Hirenaga butterfly are not your ordinary Hirenaga Butterfly. They are direct descendant of the Royal family of Hirenaga butterfly. Hirenaga breeding traces back to Japan’s emperor. When the retired emperor of Japan, Akihito, was the prince in 1962, he visited Indonesia and saw longfin carp. He thought it would be interesting to cross the Indonesian longfin carp with Japanese koi. He suggested this idea to Saitama Prefecture’s Inland Water Fisheries Experiment Station. The station succeeded to develop five Hirenaga varieties.

Mr. Kurihara obtained the parent Koi from the station and bred the Hirenaga butterfly Koi. Kodama Koi Farm is the only place you can get the Royal family Hirenaga butterfly.

View Hirenaga Kujyaku View Hirenaga Asagi View Hirenaga Ginrin Orange Ogon View Hirenaga Ogon

Kurihara Hirenaga Butterfly Study Tategoi

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.

2021 Study Tategoi Koi

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