The 350 gram container of NorthFin Krill Flake Formula is a highly nutritious daily fish food featuring up to 85% whole Antarctic krill meal as the main ingredient. The krill contains high quality protein, amino acids, vitamins and minerals, as well as carotenoids and a high concentration of Astaxanthin which is a powerful natural pigment and antioxidant to make the beautiful colors on your fish stand out and pop! Also included is High DHA Omega-3 Whole Herring Meal that contains DHA which promotes healthy development, growth, and coloration in fish, Certified Organic Kelp that provides approximately 60 minerals, 21 amino acids, and 12 vitamins including nitrogen, potassium, and micro-nutrients and 100% all natural spirulina to promote optimal health and improve immune function. These delicious and palatable flakes offer a premier natural colour-enhancing supplement to ensure that your fish are able to display their beautiful bright colors at all times. Contains no unnecessary color additives or fillers. NorthFin Krill Flake Formula is exceptionally versatile and well suited for a variety of omnivorous and carnivorous fish in both freshwater and saltwater environments.