NorthFin Carnivore Formula Premium Fish Food. Carnivorous fish need large amounts of high-quality protein, and that is what NorthFin’s Carnivore Formula presents to you. NorthFin uses only High DHA* Omega-3 certified Whole Herring Meal as its main ingredient. With the combination of Whole Sardine Meal and Whole Antarctic Krill, you can be confident your large carnivore fish will get all the large amounts of high-quality protein, vitamins and minerals they need. *DHA: Docosahexaenoic acid is a fatty acid found in the meat of cold-water fish like Herring and Salmon. A high concentration of DHA helps the healthy development of your aquarium fish. Available pellet size : 10 mm Pellet type : Slow sinking pellets Recommended for : All types of carnivore fish. Available Size: 250 g / 500 g / 1 kg / 2.5 kg