Need ID on this badly

[ErikLZG]

Hello everyone
For about 3 weeks now I've notice this things on my duncans. I have take them out, scrape, and dip the coral. With in the next days they are back. This is the only coral that has this.
Thank you

 

[saltyfilmfolks]

Fuzzy pics , but could be hydroids. Some of them burrow.
Maybe scrape and putty or super glue.

 

[ErikLZG]

Fuzzy pics , but could be hydroids. Some of them burrow.
Maybe scrape and putty or super glue.

Thank you
I'll do some research on it.

 

[KJ]

Google Polychaete- Flabelligeridae (Bristle comb worm)

 

[ErikLZG]

Google Polychaete- Flabelligeridae (Bristle comb worm)

Thx
It looks really close to one of the pics that comes out on the search

 

[reef lover]

Kinda look like vermetid snails.

 

[ErikLZG]

At a quick glance they do, and that was my initial thought, but the way they came back after the first scrape and dip change that.
Thx