Encyclopaedia
Carved Star Snail
Astraea caelata
A hardy herbivorous marine gastropod with a distinctively carved and spiny shell, known as a formidable consumer of nuisance algae and diatoms.
- Family
- Turbinidae
- Origin
- Atlantico occidentale tropicale (Florida, Mar dei Caraibi)
- Origin
- Tropical oceans and reefsExtra-Amazon South AmericaCentral America and CaribbeanNorth America
- Tank use
- Used in 0 tanks
Share
22 °C - 28 °C
8.1 - 8.4
Marine
Squadra di pulizia dell'acquario (CUC)
Alta
Species description
Geographical Origin and Habitat: Widely distributed in the tropical Western Atlantic, from southern Florida throughout the Caribbean islands down to northern Brazil. Found on shallow rocky coral reefs.
Taxonomy: Member of the family Turbinidae, also classified as Lithopoma caelatum. Features a very strong, heavily sculpted conical shell with ridges and spinose nodules, measuring 4-6 cm in width. Grows to 5 cm.
Social Behavior: Peaceful, diligent, and strictly herbivorous. Spends its time crawling over rocky surfaces, scraping them clean. Cannot easily right itself if it falls upside down on loose sand.
Coloration and Sexual Dimorphism: Shell color is off-white, light grey, or greenish, often overgrown with coralline algae or encrustations which aid in camouflage. The interior is white porcelain. No visible sexual dimorphism.
Care, breeding and tankmates
Tank Setup: Suitable for reef aquariums of 15 gallons or larger. Requires stable live rock formations with ample surface area for grazing. Avoid open sand expanses where it could get stuck.
Diet and Feeding: Strictly herbivorous. Consumes green hair algae, diatoms, cyanobacteria, and film algae. Supplement with dried seaweed (nori) if natural algae resources are depleted.
Water Quality: Stable reef parameters. Salinity SG 1.021-1.025, pH 8.1-8.4, temperature 22-28°C. Highly sensitive to copper treatments and sudden osmotic shocks.
Compatibility and Tankmates: 100% reef-safe. Excellent member of the clean-up crew (CUC). Compatible with peaceful fish and corals. May be preyed upon by larger hermit crabs.
Aquarium Breeding: Broadcast spawner. Reproduction in home aquariums is extremely rare as pelagic larvae do not survive standard filtration systems.
Risks and Diseases: Starvation in overly clean aquariums. Death from being flipped over on sand; must be manually turned upright. Shell erosion in aquariums with low pH.
Invertebrate profile
- Type
- Gasteropode marino
- Diet
- Alghivoro
- Ecological role
- Squadra di pulizia dell'acquario (CUC)
- Minimum group
- 1
- Adult size
- 5 cm
- GH
- n/a
- KH
- 8 dKH - 12 dKH
- TDS
- n/a
- Copper
- Alta
- Shock sensitivity
- Alta
- Calcium and minerals
- Alti. Richiede livelli stabili di calcio, magnesio e carbonati (KH) per lo sviluppo e l'ispessimento della conchiglia scolpita.
- Molting
- Non muta (è un gasteropode), la conchiglia cresce gradualmente per deposizione di strati calcarei da parte del mantello.
- Reproduction
- Desovatore broadcast, la riproduzione spontanea in acquario è estremamente rara e le larve difficilmente si sviluppano.
- Compatibility & tankmates
- Assolutamente pacifico. Richiede attenzione: se cade capovolto sulla sabbia non riesce a rigirarsi e va assistito manualmente.
Ecological Estimates & Biological Models
Image gallery
Licensed images linked to the species or, when marked, to the closest representative taxon.
Related species
Other recommended species with similar care requirements and water parameters.


