Common name: Red starfish
General information
The Red Starfish, or Echinaster sepositus, is a striking marine invertebrate commonly found in the aquarium trade. Its vibrant red coloration and distinctive five-armed shape make it a visually appealing addition to any reef tank. This species is known for its relatively slow movement and its role in the natural control of algae within the aquarium ecosystem.
Details
- Recommended minimum tank volume
- 100 liter (26 gallons)
- Salinity
- S.G. 1.023 to 1.026
- Temperature
- 22 to 26 °C (72 to 79 °F)
- Acidity
- pH 8 to 8.4
- Average size
- 20 cm (8″)
- Care level
- Moderate to easy Sensitive to water quality.
- Diet
- Omnivore Enjoys varied diet, including meaty foods.
- Reefsafe
- Yes
- Aggression
- Peaceful
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumEchinodermsEchinodermata
- ClassStarfishAsteroidea
- OrderSpinulosidaSpinulosida
- FamilyEchinasteridaeEchinasteridae
- GenusRed Sea StarEchinaster
- SpeciesRed starfishEchinaster sepositus (Retzius, 1783)
- SynonymsAsterias rubens Olivi, 1792Asterias sagena Retzius, 1805Cribrella oculata Russo, 1893Cribrella seposita Dujardin & Hupé, 1862Echinaster sagenus (Retzius, 1805)Echinaster sanguinolentus Müller & Troschel, 1842Rhopia seposita (Lamarck, 1816)Stellonia seposita Nardo, 1834
Care
Echinaster sepositus requires a well-established aquarium with plenty of live rock and a stable environment. They are sensitive to changes in water quality, so maintaining pristine conditions is crucial. They feed on detritus, small organisms, and film algae, making them beneficial for tank cleanliness. Supplemental feeding with finely chopped meaty foods and marine-based flake or pellet food can be beneficial.
Reproduction
In the wild, Echinaster sepositus reproduces both sexually and asexually. In aquariums, sexual reproduction is rare, but they can regenerate lost limbs, and in some cases, these limbs can grow into new individuals. This process can be fascinating to observe but should be monitored to prevent overpopulation.
Habitat
The Red Starfish is native to the Mediterranean Sea and the Eastern Atlantic, from the coasts of Portugal to the Gulf of Guinea. It typically inhabits rocky substrates and seagrass beds, often found at depths ranging from shallow waters to about 200 meters.