help please

[spider86]

Can you help me ID this macro. Its growing all over my rock and has a strong foothold. I dont know how to get rid of it. Its thin with these leaf type growths.

http://reefcentral.com/gallery/data/500/122220Pic_5181_6.jpg

Thanks
Zach

[plummike]

Type of Caulerpa, other than covering it won't hurt anything. I don't know the proper name but nickname is sawblade. Very hardy not many fish can eat it. I put some in my fish only tank for Nitrate control. My Foxface nibbles on it a bit. Only thing I know of is to pull off excess.