Collection: Maruyama Tosai

Explore the largest selection of Maruyama Tosai available online, exclusively at ChampKoi. Sourced directly from Japan’s premier breeder of Jumbo Kohaku, each 1-year-old koi is hand-selected for exceptional skin quality, pattern, and growth potential.

Limited availability. Secure your future showpiece today.

**** Please be aware that due to the young age and current stage of sexual development of these tosai, we cannot guarantee their gender with 100% certainty. The gender information provided is based on our observations and experience at this time.  Champion Nishikigoi cannot be held responsible if their gender develops differently later on. ****