Worms!

[justinl]

Do thee worm things look a lot like centipedes? They're most likely bristleworms. They are, for th most part, harmless and just eat detritus that falls to teh bottom of the tank. If your set up is a reef however, you might want to consider taking out the big ones (like your foot long bad boys... these guys can get much bigger if you let em)

Oh btw, don't touch em barehanded if at all possible. They can sting you.