Help identifying algae

[Tristanyurieef]

Hi y’all, my Biocube has recently been pounced on by some sort of algae or Dinos i think. I wasn’t able to get the best pictures but it’s like brownish color and at first I thought it was just diatoms but now it’s long and grasslike and billows in the current. It’s all over my glass but only a little on my rocks and sand. Trying to identify, going to test levels tonight.

 

[blaxsun]

I can't really tell, buy it sounds like possibly green hair algae from what you describe?