Saltcorner
By Bob Goemans
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Common Urchins

 Diadema setosum (Black Longspine Urchin)

Diadema setosum
(Leske, 1778)

Black Longspine Urchin

Likely Reef Tank Suitable

Likely Fish-Only Tank Suitable

More

Most inhabit somewhat shallow coastal environments, usually no deeper than about 150 feet (45 m) and most often are found in seagrass beds, under rocks, coral crevices, and where algae encrusted rubble exists. There are many species in various 'Orders' and associated families. Some are well suited for aquaria, some are quite toxic, and many should simply be left in the wild.


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