What is this algae?

[Maine Reefer]

What is this algae? It moves with the movement of the water.

 

[tangtime]

I don’t know the name of it but it’s like a turf algae and is annoying for sure and spreads quick.

Do you have excess nutrients in your water? What lighting do you run?

 

[cristata.reef]

Brown Film Algae is what I believe people call it. I've had it in my tank for a while now but I just use a razor blade and clean it once a week. Doesn't seem to bother anything and my clowns love it for some reason