Concentrated algae center made possible by state-of-the-art extrusion technology. All vegetable, large size wafer is ideal for sucker mouthed catfish like the Plecostomas. Easily digested wafers are high in fiber. Contains patented health enchancing "ProCare". This precise blend of immunostimulants, vitamins, biotin supplement and Omega-3 fatty acids help strengthen fish's immunity and improves resistance to disease and stress. Resealable bag can be pegged or shelved at retail.