Contains a mixture of wafers for a balanced and varied diet. Algae-enriched wafers provided complete nutrition for herbivores, such as plecostomus, freshwater sharks, mollies and sucking loach. Omnivore wafers provide complete nutrition for all other bottom feeders, such as catfish and loach. Unique slow release formula keeps wafers stable in the aquarium for long periods, allowing timid or nocturnal fish to graze naturally. Easy to eat, resulting in minimal waste production and no water clouding. Enriched with vitamins and essential nutrients for excellent health and condition.