Blue Legged Hermit Crab

Name: Astrea Turbo Snail (Atlantic)
Scientific Name: Astrea tecta (also sold as Lithopoma tectum)
Maximum Size: About 1 inch
Favorite Things: Grazing constantly on algae—including film algae, diatoms, and early hair algae—helping to keep glass and rock surfaces clean.
Best Buddies: Reef-safe and peaceful; ideal member of any clean-up crew. Works well alongside hermit crabs, shrimp, and other snails. May fall onto its back and need assistance flipping over.