Trying to get rid of green dust algae

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• Iron:
• Dosing: 10 mL Flourish, 1 ppm iron chelate
• NO3:PO4 Cumulative Dosing Ratio:

Notes:
The layer of green dust algae on the tank walls has been growing steadily over the past week. Usually, I wipe off the algae right before a water change, but it keeps coming back. I've read a suggestion on a forum that a solution is to actually let it grow for 2-3 weeks, until it has grown out of its "spore" stage, and then wipe it off. Theoretically, it should then not grow back. I'll try this out. I won't wipe it down for a couple more weeks.