Thanks for the reply...before I buy the regulator, etc I am calling around to find a place that can supply the tank/CO2. I think I found a place.
Compared to pictures I see around, I am quite lightly planted.
My large unknown plant has grown about 4-5" in the past month, but the bottom leaves are droopy, with yellow edges. I think I may have two problems with it - not enough light and possibly nutrients. I have been adding Flourish, Excel, and Flourish Iron every few days, but I don't have anything else to give yet. My Nitrates have dropped from 40 (tap water has some in it to start) to 10 now.
On the other hand, my java moss has had brown leaves since the day after I put it in the tank, but I have read that it may just be adapting. It is neatly tied to a piece of driftwood.
The only problem with the Anacharis is that someone in my tank keeps digging it up and I have floating stems some mornings. I think I finally have that fixed though.
On this subject, should I slap the last 54W bulb in to the fixture (probably another ~6000k one). That would give me 2.4WPG instead of 1.8 that I have now.