Pets Choice Carp Sticks are a complete, high protein growthand colour enhancing food for all freshwater pond fish. Thefood has been specially formulated to meet the dietry requirements of Koi carp.The sticks are floating toencourage your fish to feed at the surface of the pond foryour enjoyment and to prevent the build up of lost food atthe bottom of the pond. The product contains spirulina,a highly nutritious species of filamentous algae from Mexico.Spirulina is a natural colour enhancer that strengthens and"fixes" the coloured markings of all breeds of pond fish.Vitamin C builds up the disease resistance and maximisesthe natural healing of abrasions and wounds in your fish.Pets Choice Carp Food uses a special stabilised form of themicro nutrient that has been specifically formulated andtested for use in aquatic feeds.