Urchin ID and a few questions

[JustRoy]

Hey!
I just got this little nice guy from the fish store, and iv'e been told by tow sellers that those won't touch any of the corals, and that they would eat algae only.
so let's start with the id, and then, will it eat any of my soft corals? i got xenia, mushroom polyps and some others.. all of the frags and rocks are secured.
thanks,
Roy.

 

[Slim_jim989]

Pencil urchin, and I never saw mine go after my corals

 

[JustRoy]

so there's a danger that he would eat some corals? i see on some threads that this one isn't really reef safe..
and anyway, what type of urchins would eat only algae? i know about the cushion ones, but i can't really find them in any LFS..
thanks,
Roy.

 

[expyman]

I have a pink pencil urchin in my reef. It gets annoying when they knock things over..

 

[TheSurgeon]

I dont care for the pencil urchins, I like the rock boring ones more. I had 2 pencil urchins, and 1 wasnt a problem. The other would mow through the xenia and anthelia, and had a thing about eating the stalks of frog spawns, but wouldn't touch the coral its self. They can be hit or miss. My two looked different from one and other though even though they were from the same supplier.