White Hair Like Growth

[TBLightning]

Anyone know what these white hair like growths are? They seem fairly rigid, as in they don't sway with the hair algae (a separate battle). Do any corals spread like this? Bad critter, good critter?

Thanks for your help!

 

[EeyoreIsMySpiritAnimal]

Look up spaghetti sponge and see if it looks like what you have.

 

[TBLightning]

More photos:

There are some pineapple sponges mixed in with the white hair, not sure if that would be related to it.

 

[TBLightning]

Look up spaghetti sponge and see if it looks like what you have.

The Google image searches didn't look like what I'm seeing in my tank. Some were close but different enough that I didn't think they were the same

 

[ISpeakForTheSeas]

Anyone know what these white hair like growths are? They seem fairly rigid, as in they don't sway with the hair algae (a separate battle). Do any corals spread like this? Bad critter, good critter?

They look like they may be tiny feather duster worm tubes to me, but I don’t know for sure.