Common name: red cushion sea star
General information
The Red Cushion Sea Star, Oreaster reticulatus, is a large and colorful echinoderm commonly found in the Caribbean. It is known for its distinctive pentagon shape and bright red to orange coloration, with a pattern of reticulations across its body. This species can grow quite large, making it a visually striking addition to spacious marine aquariums.
Details
- Recommended minimum tank volume
- 500 liter (130 gallons)
- Salinity
- S.G. 1.022 to 1.025
- Temperature
- 22 to 28 °C (72 to 82 °F)
- Acidity
- pH 8 to 8.4
- Average size
- 50 cm (1′8″)
- Care level
- Moderate to easy Sensitive to water quality.
- Diet
- Omnivore Scavenges, eats detritus.
- Reefsafe
- No May disturb small inverts.
- Aggression
- Peaceful
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumEchinodermsEchinodermata
- ClassStarfishAsteroidea
- OrderStarfishValvatida
- FamilyCushion StarsOreasteridae
- GenusCushion Sea StarsOreaster
- Speciesred cushion sea starOreaster reticulatus (Linnaeus, 1758)
- SynonymsAsterias gigas Linnaeus, 1753Asterias pentacyphus Retzius, 1805Asterias reticulata Linnaeus, 1758Asterias sebae de Blainville, 1830Oreaster aculeatus (Gray, 1840)Oreaster bermudensis H.L. Clark, 1942Oreaster gigas Lütken, 1859Oreaster lapidarius Grube, 1857Oreaster tuberosus Behn in Möbius, 1859Pentaceros aculeatus Gray, 1840Pentaceros gibbus Gray, 1840Pentaceros grandis Gray, 1840Pentaceros reticulatus Gray, 1840
Care
Caring for Oreaster reticulatus requires a large tank with a sandy bottom to mimic their natural habitat. They are omnivorous and can be fed a varied diet including meaty foods and algae. It's important to note that they may prey on small invertebrates and sessile organisms, so they should be kept with caution in a reef tank. Regular water changes and stable water parameters are crucial for their well-being.
Reproduction
In the wild, Oreaster reticulatus reproduces by releasing eggs and sperm into the water column, where fertilization occurs externally. In captivity, breeding is less common, but with optimal conditions, it's possible to observe spawning behavior.
Habitat
Oreaster reticulatus is typically found in shallow waters of the Caribbean Sea and the western Atlantic, from the Bahamas and Florida to Brazil. They inhabit seagrass beds, sandy bottoms, and coral reefs, often in areas with seagrass or macroalgae.