Name: Diadema Urchin, aka Long-Spine Urchin (Diadema setosum)	Origin: Indian Ocean
+ Benefits to the Aquarium Diadema Urchins will devour all types of nuisance algaes and detritus making them highly beneficial scavengers.
+ Interesting Facts These urchins are unlike any other urchin commonly available to the aquarium trade. They have long flowing spines that constantly move independently as the urchin grazes along the rockwork. They also have a distinctive orange "eye" at the center top of the urchin that moves independently as well.
+ Diet & Feeding Detritus, Algae. Self sufficient on naturally occurring food; no target feeding is required.
+ Reef Compatibility Completely safe with all corals and invertebrates
Size & Color: 2-4 inches; black, white, orange	Care Level: Very Easy
Availability: Consistent	Recommendation: 1 Per 15 Gallons