White + Hairlike stuff on GSP

[merfury1989]

Hi,

Any advice on what is this white stuff on the GSP? I only noticed it recently.
Also there are 2 hairlike 'thing' on it [marked on picture, you have to look really closely to see it, my camera focus is bad on this one]

 

[blaxsun]

They could be tube worms. Do they blow off?

 

[merfury1989]

I attached more detailed photo.

Also I did the Coral dip on this GSP, and also noticed, the white noodle type pieces attached to the GSP, which were really hard to the touch, I had to actually break it off under the dip.

 

[AydenLincoln]

They could be tube worms. Do they blow off?

It’s definitely a tube worm! Harmless filter feeder!