Urchins

[Blugobi]

Got some live rock over the weekend and found 2 urchins, both are the same kind. Black body, light grey spikes which end a light pink. Are they reef safe? I know they can be bulldozers at times, but what about on coraline, sps or lps?

 

[Gary Majchrzak]

Urchins are algae eaters- including the corallines. They shouldn't bother your corals except for their bulldozing.

 

[Blugobi]

Thanks Gary