Hikari ® Tropical Algae Wafers ™ were specifically developed for the hard to feed plecostomus and other algae eating bottom feeders. Accept no substitutes, request the first and finest disc shaped diet for your herbivorous fish! A Uniquely Shaped, Nutrient-Packed Formula High levels of vegetable matter that algae eaters prefer and love With stabilized vitamin C to support immune system health Unique raised disc shape helps duplicate plecos natural feeding action Specifically formulated with a perfect texture that doesn't dissolve readily Great for saltwater fish too; such as tangs, foxface and rabbitfish!