This “top shelf” marine protein-based diet is ideal for aquarium owners with younger fish. The minerals and nutrients included in the Zeigler Brothers Bulk Organic Fish Food FinFish Starter are targeted towards those in early development. The food helps fish, both small and large, build the immunity they’ll need later in life, as well as the color they’ll eventually grow into. With a slow sinking format, you won’t even notice these pellets, too, as they leave behind little to no waste for you to clean up. Yes, that’s a good thing.