Koi are invariably kept to be admired in a crystal clear, highly filtered pond. As such there is very little natural food supply that will help to sustain these beautiful creatures. They are entirely dependent upon their owners to provide a healthy diet that will provide them with all the nutrients that they require. Koi food is needed not only for health and growth but also for colour, body shape and immunity. As owners we have a responsibility to provide them with the very best food available.