Slug?

[littlefishy]

This creature appeared in my 1 yo nuvo 10 today. Live rock came from the Keys, zoa colony from indo. I did the best I could, but it never came completely out of the sand.

This is a top down view. Appears to have a pink back.

Any ideas?

 

[JGT]

Need to see top side but either chiton or limpet. Either is a good guy, herbivore.

 

[KJ]

Chiton.

 

[littlefishy]

Thanks, it did seem to be munching algae from the glass.