Spiny Astrea Snail - Large

The Large Spiny Astrea snail eats many types of algae including hair algae and some macroalgae. Its shell is typically dark grey and has spikes all over. It may grow to 2.5 inches. It should be placed right side up on the sand after acclimation. It is adapted to rocky habitats; if it falls onto its back on the aquarium's sand it is not physically able to flip over and must be assisted. Snails are extremely sensitive to changes in water quality.