Worm or snake??! Lol

[Pappy]

Breaking down my friends 120 this weekend in preparation for an upgrade we found this thing! He knew there was some sort of creature because all kinds of plugs and corals were disappearing under rocks and what not!

https://www.facebook.com/photo.php?v=10202856842279991

 

[Reefing Madness]

I believe thats a Rock Worm or a Eunicid Worm
http://www.reefkeeping.com/issues/2003-04/rs/
If you thought big bristleworms were scary ... ? Advanced Aquarist | Aquarist Magazine and Blog