I agree, it looks like a chiton. Nothing to worry about except if you have
small polyps coral.
It will eat out all the rock scraping algea out. Too bad it doesn't eat
other than rock algae. It will also drill holes on your life rock.
Strange that you didn't see it before, although it does lay in rocks, it
eats algae that needs light to survive, therefor, it will be eating on top
of lighted rocks.

jrs
"Charles Spitzer" wrote in message
...
some type of chiton. they typically live under rocks so you may never get
to see it for a long time.

"Bill B" wrote in message
...
Gotta love live rock. Always new critters showing up. Tank has been
going three years, with no new rock additions. Never saw this before,
probably been living in the substrate and doesn't normally come out.

Any ideas what it is?

http://home.comcast.net/~bberg100/Aq...What-is-it.htm

--
Bill Berglin

"Life should not be a journey to the grave with the intention of arriving
safely in a pretty and well preserved body, but rather to skid in
broadside, thoroughly used up, totally worn out, and loudly proclaiming,
'WOW! What A RIDE!!" ... Unknown