Upcoming events.
2025-2026 COTSKoi Growout Competition
Welcome to the 2025-2026 Children of the Sun Koi Growout Competition—where unmatched quality meets exceptional value, complemented by our inclusive Azukari service. This exclusive event presents an extraordinary opportunity to acquire premium Nisai Koi, sourced from renowned breeders such as Dainichi Koi Farm, Isa Koi Farm, Torazo Koi Farm, Ikarashi Toshinobu Koi Farm, Marudo Koi Farm, and the exciting newcomer Marushin Koi Farm.
Each fish offered ranges between 35cm and 50cm at the competition’s outset on November 7th, 2025. With prices thoughtfully set between $1,500 and $2,500, participants benefit not only from superior bloodlines and meticulous selection but also from our Azukari plan—valued at $100 per month—which ensures expert care throughout the full six-month growout period concluding on June 6th, 2026.
Join fellow koi enthusiasts and breeders alike in this refined pursuit of growth and excellence, where your favorite Koi have the chance to truly flourish. Choose one of these Japanese Koi of undeniable quality and witness remarkable transformation under professional care. The goal is growth—both in size and prestige. We invite you to be part of this distinguished experience.
KOI SALE EVENT - NAGOSHI KOI FARM Kohaku / Sanke / Showa
Nagoshi Koi Farm — Special Sale Event
Nagoshi Koi Farm, a coastal, family-owned operation near Asahi, Japan, presents a special sale featuring exceptional Kohaku, Showa, Sanke and Ogon. These koi come from celebrated bloodlines with parentage from Matsue, Isa, Dainichi, Sakai and Momotaro Koi Farms. Known for rapid, healthy growth and consistently beautiful pattern and color, these fish represent outstanding value.
Event details -
Available: 50 koi, thoughtfully priced at $900 each
Sizes: 45–55 cm
Varieties: Kohaku, Showa, Sanke, Ogon, Hi Utsuri
Quality: Exceptional for the price — large, well-formed specimens from premium bloodlines
Shipping and boarding -
Free shipping on any koi purchased during the event
Free boarding available until weather permits safe introduction to your pond
Purchase notes -
No purchase limit — you may buy as many koi as you wish
We recommend acquiring multiple koi to maximize value and take advantage of free shipping
Quantities are limited — selections will move quickly
Why these koi?
Family-run care and attention at a professional farm that produces fast-growing, robust fish
Proven parentage from top Japanese breeders ensures superior body conformation, skin quality and pattern stability
Size and quality at this price point are rare — ideal for collectors and pond owners seeking authentic Japanese koi
For more information on the Koi or purchasing, please contact Children of the Sun Koi as soon as possible. Availability is limited to the 50 fish offered for this event.
KOI SALE EVENT - KANNO KOI FARM Goshiki / Kin Showa / Sakura Ogon
Kanno Koi Farm — Elite Sale Event
Kanno Koi Farm is a world-class breeder renowned for producing some of the finest Goshiki available. Through our long-standing relationship with Kanno, Children of the Sun Koi is pleased to present an exclusive sale event featuring competition-caliber Sansai (3-year-old) koi, each measuring 48–58 cm.
Event highlights -
Selection: 30 high-quality koi, including premium Goshiki and rare Hikari Moyo varieties such as Kin Showa, Kikusui, and Sakura Ogon.
Size & age: Sansai (3 years old), 48–58 cm — ideal for immediate pond presence and future competition development.
Price: Unbeatable value at $1,500 per koi.
Shipping & boarding: Complimentary shipping and free boarding through spring, until your pond is ready.
Show opportunity: Option to enter your koi at the 2026 All American Koi Show in Las Vegas on March 30, 2026 — a perfect chance to showcase these superior fish.
Why choose these koi?
Kanno Koi Farm consistently dominates competitions with their Goshiki; these specimens reflect that championship quality in color, pattern, and body conformation. At this price point and size, acquiring one of these koi represents exceptional value for collectors, pond owners, and prospective show entrants.
How to purchase -
Space is limited — only 30 koi available. Contact Children of the Sun Koi promptly to purchase, arrange boarding/shipping, and discuss the option to prepare and enter the 2026 All American Koi Show.
Elevate your pond with authentic Japanese koi of genuine competition caliber.
The Nenmatsu Koi Auction. (Year Finale)
The upcoming online auction at cotskoiauction.com will feature high-quality Koi directly from Japan. This event lets collectors easily buy authentic Japanese Koi from home. Enjoy a smooth, elegant bidding experience and bring top-tier Koi to your pond with Children of the Sun Koi.
Koi Harvest Auction. Part Three.
The upcoming online auction at cotskoiauction.com will feature high-quality Koi directly from Japan. This event lets collectors easily buy authentic Japanese Koi from home. Enjoy a smooth, elegant bidding experience and bring top-tier Koi to your pond with Children of the Sun Koi.
Niigata Koi Breeders Auction. Part Three.
The upcoming online auction at cotskoiauction.com will feature high-quality Koi directly from Japan. This event lets collectors easily buy authentic Japanese Koi from home. Enjoy a smooth, elegant bidding experience and bring top-tier Koi to your pond with Children of the Sun Koi.
Niigata Koi Breeders Auction. Part Two.
The upcoming online auction at cotskoiauction.com will feature high-quality Koi directly from Japan. This event lets collectors easily buy authentic Japanese Koi from home. Enjoy a smooth, elegant bidding experience and bring top-tier Koi to your pond with Children of the Sun Koi.
Bid In The Bowl Auction. Part Four.
The upcoming online auction at cotskoiauction.com will feature high-quality Koi directly from Japan. This event lets collectors easily buy authentic Japanese Koi from home. Enjoy a smooth, elegant bidding experience and bring top-tier Koi to your pond with Children of the Sun Koi.
Bid In The Bowl Auction. Part Three.
The upcoming online auction at cotskoiauction.com will feature high-quality Koi directly from Japan. This event lets collectors easily buy authentic Japanese Koi from home. Enjoy a smooth, elegant bidding experience and bring top-tier Koi to your pond with Children of the Sun Koi.
Koi Harvest Auction. Part Two.
The upcoming online auction at cotskoiauction.com will feature high-quality Koi directly from Japan. This event lets collectors easily buy authentic Japanese Koi from home. Enjoy a smooth, elegant bidding experience and bring top-tier Koi to your pond with Children of the Sun Koi.
Bid In The Bowl Koi Auction. Part Two.
The upcoming online auction at cotskoiauction.com will feature high-quality Koi directly from Japan. This event lets collectors easily buy authentic Japanese Koi from home. Enjoy a smooth, elegant bidding experience and bring top-tier Koi to your pond with Children of the Sun Koi.
Bid In The Bowl Koi Auction. Part One.
The upcoming online auction at cotskoiauction.com will feature high-quality Koi directly from Japan. This event lets collectors easily buy authentic Japanese Koi from home. Enjoy a smooth, elegant bidding experience and bring top-tier Koi to your pond with Children of the Sun Koi.
Niigata Koi Breeders Auction. Part One.
The upcoming online auction at cotskoiauction.com will feature high-quality Koi directly from Japan. This event lets collectors easily buy authentic Japanese Koi from home. Enjoy a smooth, elegant bidding experience and bring top-tier Koi to your pond with Children of the Sun Koi.
Koi Harvest Auction. Part One.
The upcoming online auction at cotskoiauction.com will feature high-quality Koi directly from Japan. This event lets collectors easily buy authentic Japanese Koi from home. Enjoy a smooth, elegant bidding experience and bring top-tier Koi to your pond with Children of the Sun Koi.
High Quality Koi Auction
Take part in our High Quality Koi Auction! This auction features 30 Koi hand selected by the masters. The auction will be held online at cotskoiauction.com. It will end on Sunday September 7th, 2025 at 5pm PST.
This auction features benefits such as High Quality Koi at a great value, one-month boarding for free to accomodate your needs for getting your QT setup or ship your Koi and you may also receive FREE SHIPPING with any purchase made on cotskoi.com in conjunction with cotskoiauction.com.
Koshiji - Ozumi Niigata Koi Breeders Auction (Online)
Welcome to the Koshiji Koi Farm / Ozumi Ikarashi Koi Farm Auction!
This exclusive Koi auction is featuring two breeders based in Niigata, Japan.
Koshiji Koi Farm and Ozumi Ikarashi Koi Farm are based in Niigata prefecture. These farms in particular are very close in vicinity and have some of the most unique breeds of Koi. Please visit our online auction to participate in the event.
Enjoy this authentic Koi auction sourced directly from Japan.
High Quality Koi Auction
Cotskoi Auction presents an exquisite selection of high-quality Japanese Koi that epitomizes elegance and beauty. Each specimen is meticulously curated, showcasing vibrant colors and stunning patterns that reflect the artistry of traditional koi breeding. Our auctions offer a rare opportunity for enthusiasts to acquire authentic koi from renowned breeders, ensuring both quality and pedigree. As a connoisseur of these exceptional aquatic jewels, you will appreciate the opportunity to engage in a compelling bidding experience, surrounded by a community that shares your passion for these magnificent creatures.
Please view and bid at www.cotskoiauction.com THE AUCTION WILL END 6.1.25 AT 5PM PST
Koi and Coffee
Wake up Saturday to a peaceful setting with water sounds and colorful Koi. Enjoy freshly brewed coffee while connecting with fellow enthusiasts to share experiences and talk about pond design and filtration tips. Work together to improve knowledge and create a supportive community. Get personalized advice for beginners and experienced keepers to enhance Koi care and management, ensuring a healthy ecosystem. Experience the combination of Coffee and Koi—where passion joins expertise.
Koi and Coffee
Wake up Saturday to a peaceful setting with water sounds and colorful Koi. Enjoy freshly brewed coffee while connecting with fellow enthusiasts to share experiences and talk about pond design and filtration tips. Work together to improve knowledge and create a supportive community. Get personalized advice for beginners and experienced keepers to enhance Koi care and management, ensuring a healthy ecosystem. Experience the combination of Coffee and Koi—where passion joins expertise.