Established in 1971, Isa Koi Farm is one of the most popular and in-demand koi breeders around today.

While Isa specialize in the Showa variety, Isa koi are also known for their unique body structures and strong confirmation, as well as the stunning sumi (black) featured on the patterns of their fish.

Isa has been quoted stating that the quality of soil in the mud ponds where their koi are housed plays an important role in achieving these beautiful works of living art.