Sea Biscuit Urchin

Sea Biscuit Urchin (Clypeaster rosaceus)
The Sea Biscuit Urchin is a unique, flattened urchin with a soft, sand-colored body that adds both texture and interest to your aquarium. Native to Caribbean and Florida sandy bottoms, it burrows slightly while grazing on detritus, algae, and biofilm, helping keep your tank substrate clean. Hardy and peaceful, Sea Biscuit Urchins thrive in established tanks with stable water conditions and plenty of sandy areas to move across. Their unusual shape and gentle behavior make them a fascinating addition to reef and fish-only setups.

Quick Facts:

• Care Level: Easy
• Temperament: Peaceful
• Maximum Size: ~4–5 inches
• Minimum Tank Size: 30 gallons
• Diet: Herbivore/Omnivore (detritus, algae, biofilm)
• Reef Safe: Yes