Pencil Urchin

Species information for the Pencil Urchin, in the Urchins category.

  1. Scientific name - Eucidaris tribuloides

    Family – Cidaridae

    Common name – Pencil, Mine, Club Urchin

    Max Size – 5 in (12 cm)

    Range: Caribbean, Philippines

    Care Level – Moderate

    Temperament – Peaceful

    Foods and feeding – It will roam the aquarium eating algae and other invertebrates

    Aquarium suitability -

    Reef compatibility – No

    Captive care – This urchin will hide during the day and come out at night to forage for algae and small invertebrates. It can damage corals. It should be in an aquarium with lots of hiding places and secured rockwork. It is known from moving rocks around. Also, if it holes up, never try and remove it. Its spikes will break before it will let go. Like all invertebrates it is extremely sensitive to nitrates and copper, and small amount are fatal to it.
    Last edited: Feb 20, 2011
    little_fish, Feb 20, 2011