Tetra Pleco Wafers Complete Diet for Algae Eaters nutritionally balanced, all-vegetable food is an excellent vegetable supplement for all bottom feeding fish. Unique, state-of-the-art extrusion technology allows staple diet and concentrated algae center to be combined in one wafer. Easily digested wafers are naturally high in fiber, and will not cloud water. Tetra Pleco Wafers includes precise amounts of select vitamins and nutrients to help support the immune system with biotin supplement helps maintain healthy metabolism. 2.12 oz.