Cobalt Algae Wafers are a nutritionally balanced sinking food formulated for palatability, digestibility and minimal tank waste. They are prefect for bottom feeding aquatic herbivores, such as plecos and other algae eaters. A mix of marine and plant based ingredients are combined to sink quickly and soften slowly. Allows time for shy nocturnal animals to feed and reduce waste in the aquarium. Each algae wafer is enhanced with immunostimulants and high levels of vitamin C to strengthen the immune system. This nutritional diet is ideal for health, color and digestion. Will not could your aquarium water.