How related are they?
Same subfamily, Turbininae: close cousins
They split at the genus level: the Chestnut Turbo Snail belongs to Turbo (Turbo snails), the Astrea Snail to Lithopoma (star snails, astrea snails).
Find the Chestnut Turbo Snail on the tree · Find the Astrea Snail on the tree
Family lines, side by side
Highlighted rows are groups both animals belong to. The marked row is where their lines go separate ways.
| Rank | Chestnut Turbo Snail | Astrea Snail |
|---|---|---|
| Kingdom | Animalia Animals | |
| Phylum | Mollusca Molluscs | |
| Class | Gastropoda Snails and slugs | |
| Subclass | Vetigastropoda top snails, turban snails, abalones and kin | |
| Order | Trochida Top and turban snails | |
| Superfamily | Trochoidea | |
| Family | Turbinidae Turban snails | |
| Subfamily | Turbininae | |
| Genus split | Turbo Turbo snails | Lithopoma star snails (astrea snails) |
| Species | Turbo castanea chestnut turban | — |
Care, side by side
| Fact | Chestnut Turbo Snail | Astrea Snail |
|---|---|---|
| Type | Invertebrate · Snail | Invertebrate · Snail |
| Care level | Easy | Easy |
| Reef safe | Yes | Yes |
| Temperament | Peaceful | Peaceful |
| Diet | Herbivore | Herbivore |
| Favorite foods | Film algae and diatoms on rock and glass, Hair algae and other soft algae (in moderation), Dried seaweed (nori) | Film algae and diatoms on rock and glass, Cyanobacteria, Short hair algae and other microalgae |
| Max size | 2 in (5.1 cm) | 1.5 in (3.8 cm) |
| Minimum tank | 20 gal | 20 gal |
| Temperature | 72–78 °F | 72–78 °F |
| Salinity (SG) | 1.023–1.025 | 1.023–1.025 |
| pH | 8.1–8.4 | 8.1–8.4 |
| Nitrate | — | 0–20 ppm |
| Lifespan | About 1-3+ years in aquariums (Top Shelf Aquatics); Saltcorner calls it generally not long-lived in the aquarium. The broodstock in a 1992 spawning report were about 3 years old. | About 3-5 years in captivity according to one care guide (Aquarium Breeder). A Florida field study found L. americanum reaches full size within 2 years and has a short lifespan (Herbert et al. 2023), so many aquarium snails may be near the end of their life within a few years. |
| Breeding | Very hard | Very hard |
| Conservation (IUCN) | Not Evaluated | Not Evaluated |