Koi fish are an every changing fish, from breed to breed and with the ever changing generations, the Koi fish varies. If you are looking for the highest quality and the purest breeds of Koi, you will be happy to know that they do still exist but these pure breeds are more expensive. Most of the purest Koi fish are still found in Japan where the Koi originally was ‘found’, but in some fish breeding stations around the world, they still try very hard to keep their Koi blood lines in tact but it is difficult. Most Koi are cross bred and interbred so that the colors of the Koi and the hardiness of certain fish are ‘brought’ out for the amazing displays that are seen in the water gardens around the world.
Most all modern Koi fish keepers are happy with the lesser pure breeds of Koi because these fish keepers are looking for the colors, the habits and the hardiness of certain fish. Pedigree Koi are more difficult to raise in some areas of the world which is the main reason behind the interbreeding to begin with. While the quality of the ‘pure’ bred Koi is reduced, the quality of the overall fish that are still named Koi fish are better for fish keepers everywhere, but be sure you know what you are looking for so you don’t pay for expensive pure bred fish when you don’t live in an area that can support this need.