What is this little guy?

[Ohioreefjr]

Was admiring my aquarium when I looked in and saw this little guy. No so sure what it is, but it is also hard to explain. I attempted to take a picture, but was unsuccessful, so I took the best one I could. If anyone has any idea in what it is, and if it's good or bad.

[Ashlar]

Umm.. okay.

Can you describe the critter, cause I really can't tell what I'm looking at..

[Ohioreefjr]

I showed my dad this morning and he identified it as a stomatella. Problem solved!

[Ashlar]

Excellent! They make good grazers, and they'll reproduce in the tank if you have enough of them.

[Ohioreefjr]

This is the only one I've seen and to be honest I'm not too sure where he came from

[Ashlar]

They're pretty common hitchhikers with live rock and coral frags.