Official farm name: Kaneko Koi Farm
Breeder: Kaneko Yasuaki
Area: Nigorisawa, Nagaoka
Raising area: 30.000 m2
Varieties: Kujaku, Shiro Utsuri, Hikarimono and other varieties. Also Tamasaba.
Number of mud ponds 55, Parent stock 60, Yearly production 30.000 pcs