Type of algea?

[corwise]

Since I finally figured out this picture thing, I'm going to ask one more ID question. This popped out of some rock a few months ago, and recently started spreading to other parts of the tank. It's colorful and all, but what kind of algea is it? Do I have to worry about it taking over everything? Thanks.

Dave

http://s137.photobucket.com/albums/q228/corwise/?action=view&current=DSC02457.jpg

 

[Travis L. Stevens]

Place

 

[Travis L. Stevens]

BTW, that's Halimeda algae.

 

[papagimp]

Very nice looking halimeda at that, I wish I could get mine to grow that well.

 

[corwise]

Papagimp, it's already spread to two other locations, wish I could tell you what I was doing to make it work. I've already had a trim a bit back to keep it from overtaking a coral.
Travis, thanks for the ID.