Micro Brittle arm or something worse?

[KaiPono]

My new GSP frag (QT’d & dipped) has 1-2 long arms/tentacles/worms that extend out searching for something. I never see a head or body, it doesn’t appear to have any spines, and seems way too long for a starfish. So I’m perplexed after reading all the related posts that I could find. Any ID help and good/bad judgement is appreciated. Thx!

 

[N1tew0lf1212]

If it is a micro brittle it is no longer attached to anything i would remove with a baster and go from there micro brittles are harmless and beneficial

 

[KaiPono]

With polyps retracted, I’m now wondering if it’s a tiny spaghetti worm hiding among the GSP?