Sadly I know about that algea all to well
I will tell you what worked for me up until I gave up.
It is almost impossible to prune it manually because it break apart in your hand to easily. Siphon it.
IMO It loves Low PH
Mexican Turbo's no subsitutes. Make sure you get the real deal. Not the imposters.
http://www.etropicals.com
I wish I had better news for you
But in that sized tank to do any amount of clearing in a short amount of time were talking alot of Mexican Turbos.
After buying alot of mexican turbos it wasn't quick enough for me. So I gave "Rock Cooking" a try. Ask SeanT-Sean for his link.
If you don't mine me asking did you first see it on a Frag Plug?
Here is a good article.
http://www.marineland.com/seascope/ss2003_issue3.pdf
OLD pictures before I knew how to use the camera
It got much worse it was carpets like your tank.
