Can someone ID this algae?

[Thraciandrummer]

hey guys, this green algae has been growing pretty rapidly in my refugium. Can someone please ID it for me? Is it something I should be concerned about?

 

[Reefing Madness]

GDA- Green Dust Algae on the glass
Stuff on the substrate is Green Cyano
New tank?

 

[cloak]

Cyanobacteria. This doesn't always have to be that red/maroon color were all so used to. The stuff on the glass might be Green Film Algae.

http://www.reefcleaners.org/nuisance-algae-id-guide

 

[Thraciandrummer]

Thanks to both of you. Yes it is just under 6 months old right now. Best way to get rid of it? I mean it is in the refugium which is part of the purpose of having a refugium. Better it be in there than the display.