as TC said wont do much for algae except they do seem to like brown algaes, but hikari sinking wafers (not algae wafers) seem to always be a hit with them, along with several other more meaty foods that you can get to sink. this fish is not a true "butterfly" pleco, but for some reasons the chain stores label it that way. but, very nice gibbiceps pleco you got there. keep in mind that fish gets 18 inches, so i hope you are prepared to upgrade