Linckia laevigata reaches 40 cm. Cylindrical 5-armed sea star, characteristic brilliant blue ranging from royal to turquoise (rarely pink, green or purple). Lives on reefs, lagoons and sandy bottoms across the Indo-Pacific down to 60 m. Feeds on biofilm and organic matter. Frequent host of the parasitic shrimp Thyca crystallina attached to its arms. A star of all tropical reef photography.
Photo of Blue sea star
Frequently asked questions
How big is the Blue sea star?
Blue sea star (Linckia laevigata) reaches 20–40 cm in length.
At what depth can you find the Blue sea star?
Blue sea star is found between 0–60 m deep.
Is the Blue sea star dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Blue sea star?