My plec is a sailfin, very similar to a common pleco. He gets fed every day. Foods he loves are parboiled zucchini, cucumber, yellow squash,(these can be cut up and then frozen on a cookie sheet and put into ziplock baggies in the freezer, defrost/parboiled as needed). He also loves all brands of algae tablets, and Wardley shrimp pellets. Every so often I feed romaine lettuce--usually will eat it after 24 hrs. in the tank. Most plecos will clean a tank even overgrown with algae overnight (if they are the herbivorous type, anyhow) so its important to feed them just like your other fish. I highly recommend feeding them vegetables, and not just the fish foods. Also when I have a decoration in another tank overgrown with algae I just move it to his tank overnight, and the next day it is spotless! And driftwood is important also.