⭐ Pink Lady Sea Urchin (Salmacis sp.)
Starts Pale White as a Juvenile, Developing Signature Pink With Age • Actively Collects Shells, Stones and Coral Fragments as Camouflage • A Compact Choice for Nano Tanks
 
📋 The Pink Lady Sea Urchin is a small, distinctive marine invertebrate prized for its compact size, real algae-grazing usefulness, and a fascinating self-camouflaging habit, it actively collects and carries small stones, empty snail shells, and coral fragments on its spines to disguise itself from predators.
It comes from reef and rubble zones across the Indian Ocean, particularly around Sri Lanka, belonging to the group of "collector urchins," a behavioural trait that also makes them an interesting, ever-changing visual feature in the tank as their camouflage selection shifts over time. Every Pink Lady Sea Urchin we ship is feeding well.
This species starts out pale white as a juvenile, developing its signature pink colouration gradually as it matures. Individual foraging habits vary; some spend much of their time actively grazing algae across rock, while others settle into the sand bed and sift there instead, particularly in tanks with heavier detritus buildup. Like all sea urchins, it must never be exposed to air, as this can be life-threatening. It reaches 3-4cm test diameter, so a 30L tank suits it well, larger established tanks providing more stable long-term conditions.
 
💡 Highlights
🩷 Colour Transformation: Starts pale white as a juvenile, developing pink colouration with age
🐚 Natural Camouflage Behaviour: Actively collects shells, stones, and coral fragments to disguise itself
🌿 Effective Algae Grazer: Feeds on nuisance algae, supporting natural tank cleanup
🌊 Reef Safe: Compatible with corals and most reef invertebrates
🧠 Ideal for Nano Tanks: Compact adult size suits smaller aquariums well