Shane and I will be coming.
According to this, you need more CO2 (or better circulation of it) and water changes to keep ammonia down, but you've probably already done that research. Excel too as long as you don't have Val or Anacharis in there.
http://www.rexgrigg.com/Algae1.html
I'm looking for Pogostemon Stellatus. I think mine died... The middle of the stems rotted and the tops floated up to the surface and I sent them to a guy in the forum who was looking for some. I hoped the bottoms would grow, but I don't think they did. My Cuba or whatever grows well in some tanks, and not so well in others. My algae battle at the moment is BBA. I've been soaking hardscape elements in bleach solution, but that only gets me so far.
Michael