mine eats alge off the glass, rock, filters, and heater. but not off the sand. but then again he eats any food i put in the tank, so maybe he's to full
he is the king of the tank, will take food right out of other fishes mouth
rick
my cleans the glass and rock as others have stated.. never seen it touch the sand... but i guess if there's a lot on top of the sand, who noes, maybe it will too...