Star Snail   (Astraea sp.)
Phylum: Mollusca, Class: Gastropoda
Range: Tropical Seas
Size: 1 in.    Space:: 1+ gal.     Diet: Filamentous algae, diatoms
Reef Safe: Yes   Care Level: Easy   Temperament: Peaceful
Natural History: The Star Snail is an avid feeder on algae in rocky reef zones. It eats filamentous alga, cyanobacteria, and diatoms.
Husbandry: The Star Snail is commonly used to control nuisance algae in captivity. An aquarium with a healthy growth of algae is an excellent place for this snail. It will likely be attacked and killed by hermit crabs. It will only feed on algae. It cannot traverse sand so it should be provided a large section of live rock on which to move.

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