Isa Tosai Auction

Isa Koi Farm is well known as one of the world's top gosanke (kohaku, sanke, showa) breeders. Mr. Hajime Isa, along with his son, Mitsunori have koi breeding down to a science.

Scroll down this page to see the Isa koi we have available as well as many past award winning koi from Isa Koi Farm.

ISA AWARDS KOI (Kohaku)

Grand Champion Runner-up 86cm 6years

All Japan Koi Show Kokugyo prize 

Tokai Chiku Ten Koi Show Grand champion

Kanto Koushinechiku Nishikigoi Show Grand Champion

Mitsunori Isa

Isa Koi Farm is well known as one of the world's top Showa and  Kohaku breeders with many koi show awards to prove it. Mr. Isa has koi breeding down to a science.

Mamoru Kodama (founder of Kodama Koi Farm) visits Isa Koi Farm each year. He notes, “One thing that is constantly reinforced by Mr. Isa is how important their mud pond soil is”.

Mr. Isa explains, “Koi have an innate talent passed from their parents. It is nothing but (good) soil that will bring out the talent. Of course, various skills of breeders are important; but soil has a larger influence than that. For example, even if we breed with thoroughbred parents, if the soil quality is not good, we cannot breed high quality koi like the parents.” — Quote from Koishi book

Get your very own Isa koi and watch how it develops!

Isa Green House

Niigata Koi Mud pond

Mitsunori Isa , Isa staff and Taro Kodama

They are taking care of All Isa Koi
Inside Isa Koi Farm
Taking picture
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