These Aqua One Colour Enhancer pellets have been specially developed to provide your fish complete nutrition, while enhancing their natural colouring. Enriched with the natural algae-derived supplement, Spirulina, these pellets are a safe and natural choice. What's more, these fish food pellets are ultra-lightweight, ensuring they'll float at surface level without dissolving, keeping the water within your tank or aquarium clear and the contents visible.