Mexican Turbo Snails
The workhorse of algae grazers, the Mexican Turbo Snail can be quite the bulldozer as it works its way through corals and rockwork to devour nuisance algae. They are good workers, but can knock things over as they move to the next spot. Be prepared to pick up frags daily, or putty them securely into the aquascaping to keep them in place. These snails are about the size of a golf ball.
Known to eat Cotton Candy algae as well.