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 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 your regular daily food to provide your fish with a varied diet.