Help ID Please

[Brisk]

Hi. Is this a flatworm? Good or bad? Thank you.

 

[Gumbies R Us]

I believe a chiton of some sort, reef safe. (Could be wrong haha)

 

[dwest]

I think limpet or chiton. Good guy.

 

[Brisk]

I believe a chiton of some sort, reef safe. (Could be wrong haha)

I think limpet or chiton. Good guy.

I searched chiton and comparing the photos, the other side looks similar. I think you're right. Thank you!