Common name: Egyptian sea star
General information
The Egyptian Feather Star, Gomophia egyptiaca, is a species of crinoid, a type of echinoderm that is related to sea urchins and starfish. Crinoids are characterized by their feather-like arms which they use for suspension feeding. Gomophia egyptiaca is known for its striking appearance and the way it elegantly unfurls its arms in the water column to capture plankton.
Details
- Recommended minimum tank volume
- 75 liter (20 gallons)
- Salinity
- S.G. 1.023 to 1.026
- Temperature
- 22 to 26 °C (72 to 79 °F)
- Acidity
- pH 7.8 to 8.4
- Average size
- 5 cm (2″)
- Care level
- Moderate to easy Requires stable conditions
- Diet
- Herbivore Grazes on algae
- Reefsafe
- Yes
- Aggression
- Peaceful
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumEchinodermsEchinodermata
- ClassStarfishAsteroidea
- OrderStarfishValvatida
- FamilyOphidiasteridae StarfishOphidiasteridae
- GenusEgg CowrieGomophia
- SpeciesEgyptian sea starGomophia egyptiaca Gray, 1840
- SynonymsGomophia aegyptiaca Tortonese, 1979Linckia aegyptiaca von Martens, 1866Linckia desjardinsi (Michelin, 1844)Nardoa aegyptiaca Sladen, 1889Oreaster desjardinsi Michelin, 1844Scytaster aegyptiaca Perrier, 1875Scytaster zodiacalis Müller & Troschel, 1842
Care
Keeping crinoids in a home aquarium can be challenging due to their specific feeding requirements. They are suspension feeders and need a constant supply of fine particulate food, such as phytoplankton or specially formulated liquid foods. Strong water flow is also essential to mimic their natural habitat and facilitate feeding.
Reproduction
Crinoids reproduce both sexually and asexually. In sexual reproduction, they release sperm and eggs into the water column, where fertilization occurs. Asexual reproduction can occur through arm regeneration if an arm is broken off; it can potentially grow into a new individual.
Symbiosis
Gomophia egyptiaca does not have any well-known symbiotic relationships that are of particular interest to the aquarium hobby. However, in the wild, crinoids can host a variety of small organisms that seek refuge among their arms.
Habitat
This species is found in the Red Sea and the Gulf of Aden. They typically inhabit coral reefs and can be found at various depths, often attaching themselves to substrates with their flexible, cirri-covered stalks.