Margarita snails are great little snails to place in your aquarium. These snails are tremendous film-algae eaters and will forage on diatoms and other algae that grow on live rock and aquarium glass. They are nocturnal and do most of their cleaning at night. These snails will continue to grow their shell over time, if the aquarium is kept at proper calcium levels. In nature, Margarita Turbos live on large grass beds where they bury in the sand during high tide, and crawl along the grass blades feeding on algae during low tide. Keep one per every two gallons.