Suda Koi Farm is one of very few Japanese breeders that breeds and specialises in Hirenaga Koi, commonly known as Butterfly or Longfin Koi. The current owner Mr Kazutaka Suda also breeds other varieties of Koi such as gosanke and ginrin gosanke, Hikarimono, Yamabuki Ogon and Kumonryu. Throughout the 1960's, the then owner Atsushi Suda developed several new varieties in Koi, cementing the farms name in the nishikigoi history books.