Common name: Bispinosus Sand Star
General information
The Bispinosus Sand Star, Astropecten bispinosus, is a species of sea star found in the Mediterranean Sea and parts of the Atlantic Ocean. It is known for its distinctive two rows of spines along the margins of its arms, which give it its common name. This sea star is an active predator, primarily nocturnal, feeding on a variety of invertebrates such as mollusks and small crustaceans.
Details
- Recommended minimum tank volume
- 150 liter (40 gallons)
- Salinity
- S.G. 1.023 to 1.025
- Temperature
- 22 to 26 °C (72 to 79 °F)
- Acidity
- pH 8.1 to 8.4
- Average size
- 20 cm (8″)
- Care level
- Moderate to easy Sand bed required for burrowing
- Diet
- Carnivore Feeds on benthic invertebrates
- Reefsafe
- Yes
- Aggression
- Peaceful
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumEchinodermsEchinodermata
- ClassStarfishAsteroidea
- OrderSand StarsPaxillosida
- FamilySand Sifting StarfishAstropectinidae
- GenusSand Sifting StarfishAstropecten
- SpeciesBispinosus Sand StarAstropecten bispinosus (Otto, 1823)
- SynonymsAsterias bispinosa Otto, 1823Astropecten echinatus Gray, 1840Astropecten myosurus Perrier, 1869Stellaria bispinosa Nardo, 1834
Care
In the aquarium, Astropecten bispinosus requires a sandy substrate to mimic its natural habitat where it can burrow and hide. It is important to provide a tank with ample space for this sea star to roam. They are sensitive to water quality, so maintaining pristine conditions with stable parameters is crucial. They should be fed a varied diet that includes meaty foods like chopped clams, shrimp, and other marine-based proteins.
Reproduction
Reproduction in Astropecten bispinosus typically involves the release of gametes into the water column, where fertilization occurs externally. In an aquarium setting, breeding is less common, but with optimal conditions, it is possible to observe spawning behavior.
Habitat
The Bispinosus Sand Star is found in a range of depths from shallow waters to about 100 meters deep. It prefers sandy or muddy substrates where it can easily burrow. Its natural range extends from the Mediterranean Sea to the eastern Atlantic, including the coasts of West Africa.