What the heck is this??

Appears to be a peanut worm which is safe and eats uneaten food and detritus
 
Thank you everyone!! I truly enjoy researching on this site. Everyone is always so friendly and helpful.
Hopefully someone will know what this thing is and whether or not it needs to go. I do not know where it came from or how long it’s been in there. I don’t see any damages to my corals and it has retreated back into the rock now.
Thanks again!
 
welcome r2r.jpg
 

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