Mespilia globulus

This regal looking species of sea urchin has formal looking blue bands separating its short, multicolored spines. Available in two color varieties, the Red Tuxedo Urchin has a dramatic red spines in contrast to the Blue Tuxedo, which showcases darker blue. Mostly nocturnal, they will hide out in the rock work, coming out at night to consume all sorts of nuisance algae from hard to reach places.