Hikari Tropical Algae Wafers for Bottom Feeding Herbivorous Fish Food Hikari tropical Algae Wafer 8.8oz Algae Wafers were specifically developed for the hard to feed plecostomus and other algae eating bottom feeders. Hikari was the originator of this diet, now copied by many. Hikari tropical Algae Wafer 8.8oz Algae Wafers were specifically developed for the hard to feed plecostomus and other algae eating bottom feeders Hikari was the originator of this diet, now copied by many Algae Wafers were specifically developed for the hard to feed plecostomus and other algae eating bottom feeders Hikari was the originator of this diet, now copied by many