Superfish freeze-dried bloodworms (red mosquito larvae) are a natural, protein-rich food suitable for most tropical and some marine fish. This highly palatable treat in freeze-dried form is readily accepted by almost all fish. Freeze-drying perfectly preserves all nutrients and eliminates pathogens, making it a safe and nutritious food! Give your fish what they eat in the wild by combining freeze-dried food with their regular daily food to provide them with a varied diet.