Aha! I found a solution to my green hair.
2 days ago I started having green hair algae everywhere. Today my tank was so full I could barely see some of my frags, it seems to have exploded overnight. Trying to pluck it is an exercise in futility, it starts on a small base and expands and is firmly anchored.
I looked around and found a small BOTTLE BRUSH. I first tried to scrub it off the rocks, which was hard to do. Then I found that if you twirl it fast in a clockwise fashion, it traps and yanks the algae right off the rocks, it is so good I also twirled the gravel with it from the bottom.
To take it off the brush, I rotate it counterclockwise under fast flowing water and tease it off with a toothpick.
Laziness is the mother of invention! I can see it already on Foster and Smith, a bottle brush sold as " hair algae removing tool".!