Common name: Purple Brittle Star

General information

The Purple Brittle Star, Ophiothrix purpurea, is a striking and active echinoderm that adds both functionality and visual appeal to the reef aquarium. Its vibrant purple coloration and long, slender arms make it a noticeable addition to any tank. This species is known for its scavenging habits, helping to keep the aquarium clean by consuming detritus and uneaten food.

Care

Ophiothrix purpurea is relatively easy to care for but does require a stable and mature aquarium with plenty of live rock and a sandy substrate where it can scavenge for food. It is sensitive to rapid changes in water parameters, so maintaining a consistent environment is crucial. They are nocturnal and will often hide during the day, emerging at night to feed.

Reproduction

In the wild, Purple 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. Hobbyists may observe the release of gametes during spawning events.

Symbiosis

While Ophiothrix purpurea does not have any specific symbiotic relationships that are crucial for its survival, it can coexist peacefully with a variety of tank mates, including corals and fish. It is important to note that they should not be kept with predatory fish that may see them as food.

Habitat

The Purple Brittle Star is found in the Indo-Pacific region, typically in reef environments with plenty of crevices and hiding places. They are often associated with coral rubble and can be found at various depths, usually not exceeding 40 meters.