Tetra – PRO – Pleco Wafers PRO - Pleco Wafers - 150g This nutritionally balanced, all vegetable diet is ideal for Plecostomus, and is an excellent supplement for all bottom feeding fish. Patented, state-of-the-art extrusion technology allows a staple diet and concentrated algae center to be melded into one. PlecoWafers™ are an excellent way to offer vegetable variety and the patented, health enhancing ProCare blend.