Money Cowrie

The Money or Ringed Cowrie, (Cypraea annulus), is a small cowrie, topping out at about the size of a nickel, although oval in shape. This species will consume hair and film algae on the substrate, rocks and glass of your aquarium. While most cowries are omnivores, it is accepted in the hobby that the Money Cowrie is an herbivore. 

  This active snail will consume diatoms, film algae, hair algae, and some species of cyanobacteria.