soooooooooo wtf is this? and why does it creep me out

[Corbin]

well another lovely creepy thing, glad i spotted this one.
just grab a green shroom from J&L, got home, pulled it out of the bag and looked in the bag, what i thought was a long piece of poo or something turned out to be a Syllidae
( http://www.reefcentral.com/forums/sh....php?t=1827924 )
must of been feeding on the shroom. good thing it fell off.

thank god for the internet. say hello to the toliet long creepy friend.