What is it?

[kashman100]

This has been in my Sand bed since I set up this tank 2 years ago. Always cruising around the glass under the sand eating like a snail but not sure if it has a shell because it looks like it bends while eating. Never comes above the sand. Any ideas?

 

[cloak]

It looks kind of like the underside of a Chiton.

 

[kashman100]

Yeah that's the closet thing I saw online . Didn't realize they they got that big. It's about 2 inches long. Really does a good job cleaning glass under the sand level

 

[reef lover]

I'd agree with chiton. Score!