Astrea Snails are hardworking algae grazers that help keep your tank clean by eating film algae, diatoms, and other build-up on rocks, glass, and substrate. Reef-safe and low-maintenance, they’re ideal for both new and experienced aquarists. Care: 74–78°F | pH 8.1–8.4 | Salinity 1.024–1.026 Diet: Algae (supplement if needed) Special Note: N