Tenticles?

Hey guys:

I just fed my fish and noticed this thing moving on my new zoa rock. It has 2 tenticles and they definitely move...slowly. Is it a worm or what? It's coming out of a crevice so I don't know if it's attached to something or not.

They're translucent... Here are 2 pics.

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It looks like spegitti ? worms to me. They are good. Someone else will chime in though to make sure.

 

Chaetopterid or Spionid worm.......harmless cleaner.

 

Have you seen the body are you sure its a worm? B/c I have to limpets in my tank that just appeared and have tentacles like that well maybe about 1/2 an inch. 50JC

 

I have about 2 dozen of those worms in my tank, and quite a few in my Zoas......im sure they are worms.

 

i will third that motion sponid or spagetti worm

 

Yep! Looks like spaghetti worms to me! Thanks!