Common name: blue sea star

General information

The Blue Linckia, Linckia laevigata, is a strikingly beautiful sea star that is popular among reef aquarium hobbyists for its vibrant blue color and unique appearance. This species is known for its five long, cylindrical arms, which can sometimes regenerate into new individuals if severed, a process known as autotomy.

Care

Caring for a Blue Linckia can be challenging as they require a well-established reef tank with plenty of live rock and a stable environment. They are sensitive to changes in water quality and parameters, so maintaining a consistent and pristine tank is crucial. They feed on biofilm and microorganisms found on live rock and sometimes on the aquarium glass.

Reproduction

Reproduction in Linckia laevigata is fascinating, as they can reproduce both sexually and asexually. In the wild, they release gametes into the water column for external fertilization. Asexually, they can regenerate lost limbs, and in some cases, these limbs can grow into complete sea stars.

Symbiosis

While not known for a specific symbiotic relationship like clownfish and anemones, Blue Linckia sea stars may sometimes be seen with small commensal shrimps or tiny fish that seek refuge among their arms.

Habitat

Blue Linckia sea stars are found in the Indo-Pacific region, typically in shallow, coral-rich areas and reef flats. They prefer well-lit environments and can often be seen on the reef crest or along the reef slope.