Snail---is it invasive?

Found this snail in my tank. It has a halt oyster like shell on the top only and a long foot. Can move pretty fast. Wondering what it is and if it is invasive and should I keep it out?

See pic:



Thanks
Chris

 

ive seen these on some recent frags. I had two i pulled out before the dip but were dead before I could do research. Another guy in town has some in a holding tank system. I don't know but i'll give you a bump and follow!

 

It looks like a stomatella, a safe and a good cuc addition I have several in my tank and fuge.

 

Yup...it's stomatella/ Thanks!!! Looks like they are ok.

 

Stomatella, definitely reef safe.

 

They are just another one of life's natural cleaners and great for a reef aquarium.

 

Peek in your tank in the early hours before the lights come on.... you'll eventually see a million kazillion of them at that time. Their numbers wax and wane, either way it's of no consequence. I snag them up and put them in all my tanks.