Pencil Urchin (Eucidaris tribuloides)

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Eucidaris tribuloides Size: 1.25-1.75 inches Diet: Omnivore Reef Safe: No, Can damage coral when they move Best Use: CleanupDr. Mac's Comments: Pencil Urchins are not especially re ef safe because they can damage corals when they move through the tank. They are omnivores so they do a great job in cleaning up leftover food and are peaceful. Their spines are sharp so be careful in handling. pencil urchins may rasp coralline algae and can disturb delicate sessile invertebrates. Click Here for Video Show more