Tuxedo Urchin (Mespilia globulus) saltwater invertebrate

Tuxedo Urchins are compact, generally reef-compatible grazers that move across rock and glass consuming film algae and some short turf growth. They are known for covering behavior, carrying shells, rubble, algae, or unsecured coral frags on their tube feet. Keep them in an established aquarium with stable salinity, adequate grazing area, and secure aquascaping. They are sensitive to copper and rapid changes in water chemistry.

When natural algae becomes scarce, offer dried seaweed or algae-based wafers near the urchin. A clean-looking tank can still leave an urchin short of food, so monitor grazing and body condition.

Film Algae Diatoms Turf Algae Dried Seaweed
Peaceful and methodical. It commonly carries loose objects for camouflage, so glue down valuable frags and provide harmless rubble.

FAQ

Frequently Asked Questions

About the Tuxedo Urchin

  • Why is my Tuxedo Urchin carrying shells?
    Covering is normal camouflage behavior. Secure frags and offer harmless rubble.
  • Will it eat coralline algae?
    It can scrape some coralline algae along with other hard-surface growth.
  • Is it reef safe?
    It is generally coral safe but may carry or dislodge loose frags.
  • How do I feed it when algae is gone?
    Place dried seaweed or an algae wafer where the urchin can reach it and remove leftovers.