Description
Overview: Royal Urchin (Mespilia globulus) is a proven reef aquarium helper that supports cleaner glass, rockwork, and substrate with minimal maintenance.
- Recommended tank size: 30+ gallons
- Role: Algae grazer
- Diet: Algae (supplement with nori if needed)
- Ease of care: Moderate
Care notes: Powerful algae eater—secure frags as urchins can knock things over. Avoid copper medications.
Fun fact: Many cleanup-crew inverts are most active at night—check your tank after lights-out to see them at work.
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