Give your bottom feeders top-notch nutrition when you feed them Cobalt Aquatics Ultra Tropical Micro Grazers Sinking Fish Food. This food sinks to the bottom of the tank to nourish your fish， crabs and shrimp. The recipe features a high concentration of carefully selected natural ingredients like wild sword prawns and squid meal. It’s even fortified with prebiotics and probiotics for digestive and immune system support! This slow-sinking food scales back on the waste for a cleaner aquarium. Plus， it won’t cloud the water so you keep your clear view of your fishy friends!