What is this green algae

[Lemon90]

I have this green algae on my rocks and sand. What is it and how do i get rid of it?http://reefcentral.com/gallery/data/500/190208DSC00469.JPG

[Lemon90]

sorry about the pic i dont know how to make it clear can some one give me advice

[sps1-2-b]

Can't really make out the pic, but if you're having problems with algae then phosphates are your problem. You could eliminate phosphates via phosban reactor or incorporate macro algae (chaeto) in a fuge.

[Reef Stallion]

That's either a Martian or Elvis.

Actually, if the picture was sharper, you would get a lot more help.