Radiant Cushion Urchin

Radiant Cushion Urchin — Salmacis bicolor A striking and functional addition to established marine aquariums. This rare, colorful sea urchin is prized for its appetite for nuisance algae on rocks and glass, making it valuable for managing infestations naturally. Grows to approximately 8–9 cm and spends most of its time grazing across rockwork. Peaceful temperament, though it may occasionally dislodge corals as it moves about the reef. Key traits: algae grazer, peaceful, slow-moving, hardy in stable conditions. Best suited to established systems with ample rock surfaces and moderate water flow.