Bristle worm ID

[Bengals888]

Hi,

These started growing in my HOB CPR fuge. So far, they are about 1-3mm length.

I cannot tell for sure if they are:
Polychaete - Dorvilleidae

Checking if they are harmful and what do to do if they multiply.

I am going to seed the sand bed with tisbe pods, don’t want the worms wiping out the tisbe if
that is possible or not.

Thanks

 

[Crabs McJones]

Hard to tell from the algae on your glass, it could be a common bristle worm or perhaps a dorvilleidae