A perfect balance of premium-select ingredients developed to promote proper growth and desirable form in most herbivorous species with higher levels of vegetable matter and multiple algaes that plecostomus and other algae eaters prefer. Contains pure-cultured spirulina & chlorella algae to help your underwater friends look their best, always. The uniquely shaped disc sinks rapidly and retains its shape allowing less aggressive species ready access to its nutrition. It's also the perfect treat for your omnivorous fish to super-charge their nutrient intake.