The original and best-selling algae wafer worldwide, and still the go-to bottom feeder fish food for plecostomus, ancistrus, and other algae-eating catfish. Specifically formulated for their unique dietary needs with 33% crude protein and pure-cultured spirulina and chlorella to promote vibrant colors and healthy growth, the unique disc shape sinks rapidly and retains its shape overnight, allowing nocturnal feeders plenty of time to graze without clouding the water. A staple that has earned its reputation as the standard pleco food against which other algae wafers are measured.