Rock Boring Urchin
 

Ok, I have what appears to be a Echinometra mathaei Aka Rock Boring Urchin.

I've had him for at least 2 years now but he's out growing my reef. He is about 3.5" to 4" in diameter. (spines and all) .. this is an estimate since he is only out at night its hard to tell. Anyways... great guy.. just too big for my 50gal..

Eats coraline from what I have noticed.. also never actualy seen him make a hole, just sits in the rocks wherever.. :) Only comes out at night.

Looking for 20$ or trade for SPS frag.

Just out of curiousity, was this urchin a hitchhiker?

yeah, was with an acro frag. In the rock.. I've never seen it munch on corals or anything either.. seems pretty reef safe except for your coraline :)

Is that him in your avatar Chad?

yes, thats him. When he was MUCH MUCH smaller, he was dime sized there.

Still available