Great for all types of vegetable eaters including fish, snails and crustaceans, it contains a perfect balance of premium-select ingredients developed to promote proper growth and desirable form in most herbivorous species. Contains higher levels of vegetable matter and multiple algaes that plecostomus and other algae eaters prefer. The uniquely shaped disc sinks rapidly and retains its shape allowing less aggressive species ready access to its nutrition. Contains pure-cultured spirulina and chlorella algae to help your underwater friends look their best, always.