Common name: Sponge brittle star
General information
Suenson's Brittle Star, scientifically known as Ophiothrix suensoni, is a colorful and active echinoderm that is popular among reef aquarium enthusiasts. This species is known for its long, slender arms and vibrant coloration, which can range from red to orange, with contrasting white or yellow bands. They are nocturnal creatures that usually hide during the day and become more active at night when they search for food.
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
- 10 cm (4″)
- Care level
- Moderate to easy Needs stable conditions & detritus
- Diet
- Detritivore Feeds on detritus and small organisms
- Reefsafe
- Yes
- Aggression
- Peaceful
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumEchinodermsEchinodermata
- ClassBrittle StarsOphiuroidea
- OrderBrittle StarsOphiurida
- FamilyBrittle StarsOphiotrichidae
- GenusBrittle StarsOphiothrix
- SpeciesSponge brittle starOphiothrix suensoni Lütken, 1856
Care
Ophiothrix suensoni requires a well-established aquarium with plenty of live rock and a sandy substrate to mimic their natural habitat. They are scavengers that will feed on detritus, uneaten food, and small organisms within the aquarium. It's important to ensure that the tank is free of aggressive fish that may harm these brittle stars. They are sensitive to changes in water quality, so maintaining stable conditions is crucial for their well-being.
Reproduction
In the wild, Suenson's Brittle Stars reproduce by releasing eggs and sperm into the water column, where fertilization occurs externally. In the aquarium, breeding is less common but can occur if conditions are ideal. The larvae are planktonic and will settle to the bottom of the tank as they mature.
Symbiosis
While not known for any specific symbiotic relationships, brittle stars in general play a role in the cleanup crew of a reef tank, helping to maintain a clean and healthy environment by consuming organic waste.
Habitat
Ophiothrix suensoni is found in the Caribbean Sea and the Gulf of Mexico, typically dwelling in coral reefs, seagrass beds, and among sponges. They prefer areas with moderate to strong water currents, which aid in their feeding.