Nutrafin basix Staple Food is specifically formulated for daily feeding of all tropical fish. Basix Staple Food contains a balanced formula that includes all necessary protein, amino acids, fibre, minerals and vitamins to help ensure the health and well-being of aquarium fish. In general, aquarium fish should be fed a varied diet containing freeze-dried foods such as Nutrafin basix Mysis Shrimp, Nutrafin basix Tubifex Worms and Nutrafin basix Blood Worms. Bottom-feeding species should be fed Nutrafin basix Staple Food Tablets. Available Sizes: Quart, 200 g (7 oz) / Poly bag, 226.8 g (8 oz) / Poly bag, 454 kg (1 lb)