KG,
I hv this algae only in my new tank or new setup. And i saw one of the member new tank with very strong flow. There are 2 power head running inside the tank. So, the limited water movement is out.

I was doing the PSB daily and feeding extra. After 2 weeks...The BGA just gone. I said this happen to new tank coz of the new tank lack of nitrate.

Check this out for more info.
http://www.aquaticplantcentral.com/f...?do=view&id=12