Hikari Saki-Hikari has been developed as a result of decades of first hand breeding experience and considerable insight from a number of Japan's top breeders. Saki-Hikari is the diet used by the All Japan Koi Show Grand Champion winners in back to back shows dating back to 2003. If you want the VERY best for your koi, look no further than the leader in koi nutrition worldwide, Hikari!