I've been starting to follow the method of controlled imbalances recently. It got rid of my BBA but now I have this greenish algae on older glossostigma growth. It's hard to make out exactly what it looks like, I think it's some sort of thread algae but not sure. http://imgur.com/a/TuljP
You can't see it on those photos because I hoovered around the plants, but it has also formed a very thin layer on the surface of the sand which sort of binds it together, so that the sand hoovers up in clumps.
Any insight would be appreciated.