Common name: banded ophiocoma

Scientific name: Ophiocoma pumila Lütken, 1856

General information

The Dwarf Brittle Star, Ophiocoma pumila, is a small and agile echinoderm that is popular among reef aquarium enthusiasts. This species is known for its distinctive banded arms and central disc, which can exhibit a range of colors from brown to reddish or even greenish hues. Brittle stars are nocturnal and tend to hide during the day under rocks or within the crevices of the reef.

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 Sensitive to water quality.
Diet
Omnivore Scavenges for detritus & small organisms.
Reefsafe
Yes
Aggression
Peaceful
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Echinoderms
    Echinodermata
  3. Class
    Brittle Stars
    Ophiuroidea
  4. Order
    Brittle Stars
    Ophiurida
  5. Family
    Brittle Stars
    Ophiocomidae
  6. Genus
    Brittle Stars
    Ophiocoma
  7. Species
    banded ophiocoma
    Ophiocoma pumila Lütken, 1856

Care

Ophiocoma pumila is a hardy species that can adapt to a variety of tank conditions. They are excellent scavengers and will help maintain a clean aquarium by consuming detritus, uneaten food, and dead organisms. It is important to provide them with plenty of hiding places and a stable environment with consistent water parameters.

Reproduction

In the wild, brittle stars often reproduce by releasing eggs and sperm into the water column, a process known as broadcast spawning. In the aquarium, however, reproduction is less common but can occur if the environment is stable and there are multiple individuals present.

Symbiosis

While not known for specific symbiotic relationships like those seen in clownfish and anemones, brittle stars can contribute to the overall health of the reef by providing cleaning services and aiding in the breakdown of organic matter.

Habitat

Dwarf Brittle Stars are typically found in shallow reef environments where they can easily access organic debris for feeding. They are adept at navigating the complex structures of coral reefs and are an important part of the ecosystem.