Overview
The Astrea Snail (Lithopoma tectum) is a beginner saltwater species known for its brown-tan, rough conical shell coloration. Classic reef algae cleaner. Surfaces.
Origin & Appearance
Origin: Caribbean.
Colors: Brown-Tan, Rough conical shell.
Body Shape: Snail (coiled shell). Typical adult dimensions: 3.0 x 2.4 x 2.4.
Sexual Dimorphism: Minimal; difficult to sex.
Tank & Water Requirements
| Min Tank Size | 5 gallons |
| Temperature | 75–81°F |
| pH Range | 8.1–8.4 |
| Water Hardness (GH) | dKH 8-12 |
| Bioload | low |
| Oxygen Demand | low |
| Plant Safe | yes |
| Aquarium Position | Surfaces |
Behavior & Activity
Surface grazer; cannot right itself if knocked off rock; slow deliberate grazing; needs to be rescued if flipped
Speed: 12/100Aggression: 1/10diurnalSchooling (3+)
Breeding
Not bred at home
Common Diseases
💊 Shell erosion in soft/acidic water
Expert Notes
Classic reef algae cleaner