What is this Algae?

[adamrubinger]

Can anyone tell me what this is? I have a big patch the size of a baseball growing on my rock and a few branches on the same rock. Came with the rock and is on no others. Here is the image:

]http://community.webshots.com/storage/1/v5/8/75/92/32087592oBIRzjlCpM_ph.jpg[/img][/url]

 

[adamrubinger]

sorry about that. Try this link

http://community.webshots.com/photo/32087423/32087592oBIRzjlCpM

 

[Manofathousandpolyps]

I cant help ya, Im have some to and no one seems to know.