Dymax Algae Wafers Supreme guarantees excellent nutrition for herbivorous bottom feeding fish. This product is produced with a complete daily diet; fortified with vitamin; supplements and specifically formulated with mostly vegetable materials for sensitive Plecostomus; algae eaters and other bottom feeders. Contains high levels of nutritious spirulina contents preferable for sucker fish; plecos and other bottom feeding fish. A perfect balance of premium selected ingredients developed to promote healthier growth for any herbivorous species. Contains higher levels of vegetable matter and multiple algae’s that Plecostomus and other algae eaters prefer.