Hitchhiker urchin- what breed is it?

[ilovemarinetanks]

i got a hitchhiker urchin on my live rock and would love to know what breed it is.


thank you!

 

[JoJosReef]

Pencil urchin

 

[ilovemarinetanks]

thank you!!

 

[littlefoxx]

Yep pencil urchin! Cool hitchiker, I want one to hitch hike into my tank!

 

[tbrown]

Mine was great! Until it ate half of my Galaxea and an Acro frag. Now he's a cool sump inhabitant.

 

[tbrown]

I should point out - there are two different varieties of urchins that are often called Pencil Urchin. Only one of them sometimes eats corals. If it doesn't eat coral, I liked mine a lot more than my destructive pincushion.