These nishikoi staple fish food pellets will provide your fish with a complete, well balanced diet. Containing all the essential vitamins and minerals required for healthy growth.health, growth colour developed in collaboration with the uk's leading nutritionists using only the finest ingredients to produce a fish food which will provide your fish with a complete, balanced dieteasy to digest by using only premium, high quality ingredients and the latest manufacturing technology these fish food pellets are highly digestible, low waste resulting in less pollution in your pond watercontains stabilised vitamin c which helps your fish to resist disease and improves their recuperative ability