For years the formulation team at Hikari® has worked diligently to identify a probiotic that would be beneficial to marine carnivores. Once they isolated the preferred bacteria from literally thousands of options, they continued to work on a diet that would bring about the same results our koi consumers have enjoyed for more than a decade. After many years and countless feeding trials Saki-Hikari® Marine Carnivore is the result. A diet all marine carnivores crave!