Is this a fan worm?

[AustinB]

Hey in the center of this picture is what appears to be a tiny fan worm, it retreats with any disturbance, I inherited this rock and don’t know what was in here before as far as fan worms go. Thanks guys!

 

[Dragon52]

Possible Feather Duster, Harmless

 

[Oscaror]

Hey in the center of this picture is what appears to be a tiny fan worm, it retreats with any disturbance, I inherited this rock and don’t know what was in here before as far as fan worms go. Thanks guys!

Just a little feather duster

 

[AustinB]

I figured, I love waiting and seeing what pops out of the rock!