Need Worm ID

[Turnage]

What is this growing on the side and base of that frag plug?

 

[Turnage]

Better pic

 

[reef lover]

Hard to tell. .can you scrape them off.

 

[KJ]

Google sponge.

 

[Turnage]

Hard to tell. .can you scrape them off.

Yes. At night they extend and look like thin white string. They are multiplying quickly.

 

[reef lover]

Not sure...i would remove them as you see them.