I have the same kind, i believe it is Cladophora algae, good thing is that it tends to be rather easy to remove out in clumps.
What kind of aquarium specs. do you have, this tends to be caused by to little CO2 i think.
True enough, I've looked closer again maybe it really is hair algae, looks softer than Clado.
Hmm, cool, this is good news for you as well as i believe it is easier to remove...But i will have to do a bit of research for ya when i get the chance!