Starting to try to get rid of green dust algae (again)

• pH:
• Temp:
• KH:
• GH:
• NH4:
• NO2:
• NO3: 10
• PO4:
• Iron:
• Dosing: 15 ppm NO3 last night, 1.8 ppm PO4 last night, 5 ppm Flourish, 20 ml Excel
• NO3:PO4 Cumulative Dosing Ratio:

Notes:
I'm going to try again to let the green dust algae on the tank walls grow out for 4-5 weeks, without any water changes, but keeping up on the ferts. Last time I tried this (unsuccessfully), I left the algae alone, but still continued with the water changes. If the plants seem to be suffering excessively from the lack in water changes, I'll start the water changes, but still try to not disturb the algae growth. I also reduced the light period from 11 hours to 10 hours.

Some other peoples' experiences.