What is this thing?

[JBS]

Does anyone know what these are? That aren’t very mobile but never seen them before. Thanks!

 

[DLHDesign]

Seems like some kind of flatworm or the like, but I'm far from an expert on this stuff... Let's see what others think.

I'm sure that your follow-on question will be, "Are they reef safe?" as well. ;-)

 

[Big G]

Kinda hard to tell from your pictures. Here's a link that may help. Cheers!
https://www.lionfishlair.com

 

[pugcrush]

chiton or limpet maybe?

 

[Salty1962]

Stomatella maybe?

 

[KJ]

Colonial Tunicate.

 

[JBS]

I think it looks a lot like this in person. I’ll try to get a better picture today! Thanks!!

 

[KJ]

I think it looks a lot like this in person. I’ll try to get a better picture today! Thanks!!

YW