Blue Linckia Starfish

Blue Linckia Starfish (Linckia laevigata): A stunning, iconic reef invertebrate recognized for its vivid blue coloration and graceful movement across rockwork and glass. It’s one of the most sought‑after starfish species in marine aquaria but requires stable, mature systems to thrive. 🌊 Identification Common name: Blue Linckia Starfish Scientific name: Linckia laevigata Family: Ophidiasteridae Appearance: Typically five arms, smooth and cylindrical. Color ranges from deep cobalt blue to turquoise, occasionally purple or greenish hues. Diameter up to 12 inches (30 cm) when fully grown. Surface texture: fine, velvety skin with tiny papillae. 🏝️ Natural Habitat Range: Indo‑Pacific—Red Sea to Fiji, including Indonesia and the Philippines. Environment: Shallow coral reefs, rubble zones, and lagoon flats. Behavior: Slow crawler; grazes on biofilm, bacterial mats, and detritus on rock surfaces. 🧠 Temperament & Ecology Temperament: Peaceful, non‑aggressive. Reef-safe: Yes—does not harm corals or sessile invertebrates. Role: Natural detritivore and microfilm grazer; contributes to reef cleanliness. 🏡 Aquarium Care Tank size: Minimum 100 gallons for long‑term stability. Water parameters: Temp: 75–80°F (24–27°C) Salinity: 1.024–1.026 pH: 8.1–8.4 Nitrate: <10 ppm Lighting: Moderate to strong—encourages natural biofilm growth. Flow: Gentle to moderate; avoid strong jets that can damage tube feet. Diet: Primarily consumes biofilm, bacterial mats, and detritus. Supplement occasionally with marine pellets or finely chopped seafood placed near arms. ⚠️ Care Challenges Sensitive to transport and acclimation: Must be drip‑acclimated slowly (1–2 hours). Starvation risk: Needs mature rockwork with natural film growth. Avoid exposure to air: Can trap bubbles internally, leading to tissue necrosis. Regeneration: Can regrow lost arms if water quality remains pristine. 📌 Quick Summary (Seahorse Aquarium–friendly) Size: Up to 12" Temperament: Peaceful grazer Reef-safe: Yes Diet: Biofilm, detritus, microalgae Care level: Moderate to difficult Origin: Indo‑Pacific reefs Key needs: Mature tank, stable parameters, gentle flow