what is it ?
 

What I found while doing some rock work. Good or bad ? Has a hard shell and a foot like a snail. Sorry for poor pic, done with a video cam still shot :rolleyes: and never posted a pic before :confused:
Top view
http://www.canreef.com/photopost/dat...0003-thumb.jpg
Bottom view
http://www.canreef.com/photopost/dat...0005-thumb.jpg

I think that's called a Chiton. They're algae eaters and are good to have.

Chiton
 

Yup Chiton...I second that!
Jaws posted one a while back....does yours resemble this:
http://www.canreef.com/phpBB2/viewto...ghlight=chiton