Description
Linckia laevigata, commonly known as the Blue Starfish, is one of the most iconic and visually striking echinoderms in the marine aquarium hobby. Renowned for its intense cobalt to sky-blue coloration and smooth, velvety appearance, this species brings a bold splash of color and elegance to large, mature reef systems. Slow-moving and deliberate, the Blue Starfish spends its time gliding across rockwork and hard surfaces, contributing to the natural aesthetic of the reef.
Origin: Indo-Pacific
Depth: 1–20 m (3–65 ft)
Lighting: Moderate; not light-sensitive and comfortable under standard reef lighting
Flow: Low to moderate; prefers gentle, consistent water movement
Tank Placement: Rockwork and hard surfaces; occasionally traverses the substrate
Temperature: 75–80°F (24–27°C)
Salinity: 1.024–1.026 SG (extremely sensitive to fluctuations)
pH: 8.1–8.4
Diet: Specialized feeder – consumes biofilms, microbial growth, sponges, and encrusting organisms; does not accept prepared foods and requires a large, mature, well-established aquarium
Temperament: Peaceful
Size: Up to 30 cm (12 inches)
Care Level: Advanced – highly sensitive to acclimation stress, handling, and unstable water parameters
Compatibility: Reef-safe; safe with corals and most fish, but should not be housed with aggressive fish, large wrasses, triggerfish, or predatory crabs
