Fan Worms Inside Acropora?

[Nick James]

I purchased this large Acropora frag a couple days ago. I dipped it in coralrx, toothbrushed the base and inspected. All is well.

The next day, I notice these "eyelash" type fans sticking out then shooting back in to the body of the Acropora. The opening looks like a closed eyelid, it opens and the fans come out.

Here is a video, hoping to get an ID so I can look up what they are.

https://youtu.be/QvKzSDw295k

 

[Nick James]

I'd like to add that the coral appears perfectly healthy and unaffected by these fans

 

[tripdad]

They're barnacles, totally harmless, enjoy your new corals

 

[Nick James]

They're barnacles, totally harmless, enjoy your new corals

Awesome! Thanks for that ID!