The Pencil Urchin is solitary. During the day, it seeks to find shelter in the rocks. At night it will come out looking for food & lives on algae, bryozoans, sponges, and tunicates. It should be noted that this urchin is destructive to corals.
COMMON NAME: LongSpine Urchin
SCIENTIFIC NAME: Eucidaris tribuloides
SIZE AVAILABLE: ~1-2 inch
MINIMUM TANK SIZE: 30 gallons
CARE LEVEL: Moderate
REEF SAFE: No
AVAILABILITY: Most always available - 99%