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Colored Short Spine Urchin 

 Scientific Name  Mespilla sp.
 Diet  Herbivore; algae, filamentous algae, scavenger
 Alt Common Name  Globe, Sphere, and Tuxedo Urchin
 Family  Temnopleuridae
 Origin  Palau
 Aquarist Level  Novice
 Reef Safe  With Caution †
 Coloration  Varies; Blue, Pink, or Green
 Disposition  Peaceful †
 Hardiness  Very
 Mature Size  2 inches - body diameter
 Reproduction Method  Gamete Release - planktonic larvae
 Sexual Dimorphism  None
 Venomous  Yes (spines)

Recommended Supplements

Notes:  These urchins are very useful in the aquarium for the control of hair algae.  This and other urchins are preyed upon by triggers and wrasses, who flip the urchin over by blowing a stream of water at it. 

†  May attempt to eat some corals.  Primarily feeds on algae, including coralline, and detritus.