Algae or what?

[Jholli90]

I'm assuming this is some sort of algae but I haven't been able to find a picture that matches. Its is gray, fuzzy looking, soft and moves with the current. It is mostly underneath my cabbage coral, but it is also growing in some of my rock crevices in low light areas. My parameters are normal, temp is 79 and salinity. 27
What is it? Should I be worried? What kills or eats it?

 

[Webslinger]

Looks like Cladophoropsis, Green Wiry Algae?? Pick it out