pencil urchin and leather coral?

[roadcrew]

So the other day i see my pencil urchin moving in on the corner that houses my large finger leather. when i come home from work, the urchin is square on top of my leather, half of it appears to be missing!
o crap, as i go diving in to my tank. by this time the urchin has wedged himself nicely in the rock, and i had to move a couple to get him out.
well i found some pieces, not enough though. they looked horrible! i have bumped, moved, cut, removed from water, smashed and other wise been abusive but NEVER have i seen the leather react like it was. i rubber-banded the newly fragged pieces to a rock and wait. the next day the frags look a little better and are starting to fill out.{after posting the pics i realize the frags look 100% better that when i put them on there}
as you can see in the pics, there is not enough frag material. i've looked around and i still cant find any more.

IS IT POSSIBLE MY URCHIN ATE IT??

BEFORE
<a href="http://s49.photobucket.com/albums/f265/whitetrashrocker/fishtank%20pics/?action=view&current=DSC03719.jpg" target="_blank"><img src="http://i49.photobucket.com/albums/f265/whitetrashrocker/fishtank%20pics/DSC03719.jpg" border="0" alt="Photobucket"></a>

AFTER
<a href="http://s49.photobucket.com/albums/f265/whitetrashrocker/fishtank%20pics/?action=view&current=DSC03749.jpg" target="_blank"><img src="http://i49.photobucket.com/albums/f265/whitetrashrocker/fishtank%20pics/DSC03749.jpg" border="0" alt="Photobucket"></a>

FRAGS
<a href="http://s49.photobucket.com/albums/f265/whitetrashrocker/fishtank%20pics/?action=view&current=DSC03747.jpg" target="_blank"><img src="http://i49.photobucket.com/albums/f265/whitetrashrocker/fishtank%20pics/DSC03747.jpg" border="0" alt="Photobucket"></a>

 

[Superstretch18]

Yes. Pencil urchins are omnivorous and will eat pretty much anything. I've retold this story a couple of times, but I've even seen them eat other urchins. They don't belong in a reef tank...

 

[121a]

mine one is fine in my tank, just knocks things over constantly.

funny thing, that same thing happened to a huge yellow fiji leather i had. it was about the size of two palms put together, i thought it fell behind some rocks, never seen it again, pulled the tank about a few days after it went missing, nothing.

 

[mystery_reef]

yea i dont trust pencil urchins, i believe they eat coraline as well?
trade him out for a globe/tuxedo urchin. as long as your rocks/frags are puttied and stable they dont cause any problems and are great grazers. hope this helps, good luck.

 

[Elysia]

There are those who don't believe it, but I have a "pencil" urchin from the FL Keys, and had to pull it off of a gorgonian that it was eating the flesh off of -- it had stripped the flesh of the gorgonian down to the horn-like core of the gorg. The gorgonian was healthy and had its polyps extended previous to being eaten by the urchin. I have seen this same urchin feed on a recently deceased fish tankmate. While this urchin certainly did feed on coraline, it was the consumation of the gorgonian and then some xenia that got it kicked out of the reef tank and into a mushroom-only habitat.