Astraea Turbo Snail
Astraea tecta
Also known as Astrea Turbo Snail, Astraea Star Snail, Astraea Conehead Snail, Lithopoma tectum
Care at a glance
- Temperature
- 72–79°F (22–26°C)
- pH
- 8.1–8.4
- Adult size
- 1 in (2.5 cm)
- Minimum tank
- 11 gal (40 L)
- Temperament
- Peaceful
- Social behavior
- Social
- Swim level
- Bottom
- Difficulty
- Beginner
- Breeding
- No record
- Rarity
- Very common
- Reef safe
- Reef safe
- Origin
- Caribbean and Western Atlantic
- Family
- Turbinidae
Overview
A peaceful, reef-safe herbivore that spends its time cleaning rock and glass and never bothers corals or other livestock. Its main weakness is that it struggles to flip itself back over once it lands on its back, so it can starve on the sand bed if not helped. Keep an eye on upside-down snails and turn them over. Stock about one per 8 to 12 litres.
In the wild
The Astraea turbo comes from Caribbean and Western Atlantic reefs, where it grazes rock surfaces for hair algae, film algae, cyanobacteria, and diatoms. It wants a well-established tank with lots of live rock to graze and stable parameters. It is sensitive to high nitrate and copper, and because it does not handle sudden parameter swings, a long drip acclimation is important.
Good to know
Astraea tecta (also sold as Lithopoma tectum) has a pyramid-shaped, olive-green shell that often carries pointed projections, giving some individuals a star-like or conehead outline. It is one of the most efficient hair-algae grazers in the hobby, and some aquarists report it consuming the whole algae structure rather than just cropping the tips.
Did you know
It cannot easily right itself when knocked onto its back, so it often ends up stranded upside down on the sand and needs a quick flip from the aquarist to survive.
Where to buy
Some links may not be the exact species or variety.
- LiveAquaria Freshwater and saltwater fish, inverts and corals
- Saltwaterfish.com Marine fish, corals and inverts shipped overnight
…or ask your local fish store.
Appears in
Keeping Astraea Turbo Snail?
Track water tests, reminders and stocking fit.
Related species

Mexican Turbo Snail
Turbo fluctuosus2.4 in (6 cm)11 gal (40 L)75–81°F (24–27°C)
Marine Nerite Snail
Nerita sp.1 in (2.5 cm)11 gal (40 L)72–79°F (22–26°C)
Nassarius Snail
Nassarius sp.1 in (2.5 cm)11 gal (40 L)72–79°F (22–26°C)
Ring Cowrie
Monetaria annulus1.2 in (3 cm)20 gal (75 L)75–81°F (24–27°C)Trochus Snail
Trochus sp.1.2 in (3 cm)11 gal (40 L)72–79°F (22–26°C)
Bumble Bee Snail
Engina mendicaria0.8 in (2 cm)11 gal (40 L)75–81°F (24–27°C)
