Ocean Nutrition Formula One Pellets are a protein-packed soft and moist slow-sinking food for all carnivorous (meat-eating) and omnivorous (meat and plant-eating) marine tropical fish. The pellets are formulated using fresh seafood and spirulina to provide daily nutrition with an appealing flavour fish cannot resist. The soft and moist nature of the pellets makes it easy for fish to digest them, so they produce less waste and your aquarium stays cleaner.