White thread coming out of rodachtis

[Erink]

My hermit crab walked over my rodactis...its got white strand stuff coming out and it's curling up...is she a goner?

 

[Mr_Knightley]

She should be fine, those are mesentarial filaments, the stuff that fills the empty spaces of the coral. They'll sometimes eject them if they get irritated, mine do it sometimes when hermits of shrimp walk on them, it's nothing to worry about and just a defense mechanism.
Good day and Happy reefing! Keep us posted on the shroom.
God bless.