Tosai Koi are first-year Japanese koi, many with roots in Niigata. As young koi fish, they’re shaped by your care and offer strong upside in pattern and size over coming seasons. Hand-selected in Japan, our tosai highlight clean skin, promising frames, and stable color you can grow on.
Tosai symbolize fresh starts and good fortune, ideal when you’re building a collection. Explore breadth within tosai: Kohaku, Sanke, Showa, and Ogon. If you’re comparing koi for sale with long-term potential, start here; review our koi fish for sale images, then choose from Japanese koi for sale that fit your plan.
Shop premium Tosai Koi at ChampKoi. The exact fish you see is the one you get.
Comparing sizes and varieties? Browse all Japanese koi for sale to see every koi currently available.
Tosai are koi in their first year. Most range from 5 to 10 inches at release. They offer the most growth potential and are ideal if you like guiding development from a young age.
Compare clear, individual photos and body lines, then check pattern edges and skin quality. We photograph each fish so you choose the exact one. Use our listings of Japanese koi fish for sale to shortlist and decide with confidence.
Expect major shifts during the first two to three years. Red plates mature, and black consolidates as the frame fills out. Prioritize structure and skin first; pattern often finishes as the koi grows.
1 yr 31-34 cm
Fall Harvest Ships from Dec 1 (Quarantine Completion Date December 1, 2026)
1 yr 31-34 cm
Fall Harvest Ships from Dec 1 (Quarantine Completion Date December 1, 2026)
1 yr 31-34 cm
Fall Harvest Ships from Dec 1 (Quarantine Completion Date December 1, 2026)
1 yr 31-35 cm
Fall Harvest Ships from Dec 1 (Quarantine Completion Date December 1, 2026)
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Love this place and the staff! Fish are amazing, all sizes and prices. Fish healthy and water clear. Everything we have purchased from here has been free of any health issues and is doing well in our ponds. There is a fish for all price ranges as well and some uncommon goldfish. Staff knows what they are doing and gives good feedback re: any questions.
Always a pleasure to go to Champion Nishikigoi to pick up koi food for our koi pond. The staff is friendly and helpful. They always load the heavy bags of koi food in my car.
I live in Long Island New York. I’ve been buying from Champion for many years and the quality of the koi has always been exceptional and better each year. I have no problem relying on Champion from across the country as my reliable supplier.
Always positive and professional they treat you like family always answer your questions and gove you good solutions
I can easily find the food I need and the price is super competitive .. 👍👍
Beautiful fish. Arrived on the date requested, well packaged and healthy.
Excellent selection of high-quality imported Japanese koi. Everyone at the shop is friendly, knowledgeable, and patient, which makes the experience even better. The owner, Tom, is highly respected among serious koi enthusiasts across the country, and for good reason. His expertise and dedication to the hobby are evident in the quality of the fish and the service provided. Highly recommend!
This company is my go to for Koi; I am very pleased with the beauty of their Koi and the delivery. They all have come in healthy and ready to eat.
We have been shopping at Champion Koi for over 20 years and have had a wonderful experience as local customers with Tom and his family. We highly recommend purchasing from Champion Koi, as you can do so with 100% confidence in receiving the best support and quality products. It is especially worth mentioning their super friendly staff!
Ordered some supplies and koi from their website thankyou
Great fish fast shipping and great packaging
Tom is very nice person and very friendly and I wold love to buy more fish from him.
Over all Champion Nishikigoi is a wonderful company and very trustworthy.
Always nice & friendly beautiful Koi fish 🐟
These koi are so beautiful even more beautiful than the photos and videos if you can believe it! Big, thick healthy koi! I'm so please with every koi I've purchased!
My review comes with a bad experience turned immensely positive by the hard working staff at Champion Nishikigoi. I had spent a number of weeks debating on, and finally ordering a Showa upwards of 1k as the jewel of my collection. After purchasing the fish, I was notified that the fish was not in the pond and that it was possible that it was purchased in person earlier that day or that the listing had been updated without the initial listing having been removed. This was extremely disappointing to me. However, the team at Champion Koi personally reached out and the owner made recommendations for replacement. They provided me with a discount on the replacement fish, but more importantly, they actually listened to my concerns and my dismay at the experience. Champion Koi made real observable change as a response updating their website to include a warning about this very rare occurrence and making a guarantee of a 10% credit for anyone who would have a similar experience. It is extremely rare to find a business that cares enough to make actual change based on a customer experience and show that they actually care about their customers. They have certainly earned my business and they should definitely have yours!
Noy was extremely helpful and eliminated all my concerns/worries about ordering online considering I don't live close(Ohio). My gorgeous fish came looking exactly what I was expecting exceeding expectations! I'll definitely be ordering again.
