Niigata Breeder: Dainichi

Dainichi Koi Farm, based in Ojiya, Japan, is a world-famous, award-winning breeder known for producing jumbo, show-quality koi. Founded by Minoru Mano and now led by his sons, it pioneered legendary bloodlines like Dainichi Showa, Kohaku, and Sanke. With over 400,000 m² of pristine mud ponds, Dainichi uses elite breeding, winter conditioning, and advanced culling techniques to create koi with incredible body conformation, vibrant beni, and crisp kiwa. Their fish consistently win Grand Champion titles at the All Japan Koi Show—making Dainichi a global gold standard in Nishikigoi excellence.