Need help with an ID please!

[yzguy01250]

I have been rummaging through google images all day trying to figure out what this is. Anyone know? It's spreading rather quickly and I need to know if I should remove it. I got a nice finger full of bristle worm last night when I started pulling it out. Fun!

 

[yzguy01250]

Not sure why my iPad is posting these pics sideways....

 

[saltwater sam]

Looks like Caulpera serrulata to me.

 

[yzguy01250]

Thank you, Sam!