NorthFin Krill Pro Formula is professionally developed to improve the health and well-being of your freshwater and marine fish, while naturally enhancing their brilliant colors. Made exclusively with premium quality ingredients, this balanced and nutritious daily diet is completely free of fillers, hormones, and artificial pigments. Easily digestible, slow-sinking 2 mm pellets promote optimal nutrient absorption and help reduce the amount of waste in your aquarium. Proudly made in Canada. All NorthFin premium fish foods are made with the following key ingredients: Antarctic Krill - Krill contains high quality protein, amino acids, vitamins, and minerals. It is also a natural source of carotenoids, which bring out the rich and vibrant colors of your fish. Contains a high concentration of As.