I have 2x 18W T5 HO as well as 2x 18w T5 SO above the tank which I run about 6 hours a day (ever since I moved, my programmable power strip timer seems to not work, and I can't figure the damn thing out now so it's not an exact # of hours per day) I have a fluval pressurized CO2 (88g disposables) and I use flourish root tabs. I also dose with flourish comprehensive a few times a week.
I do partial water changes about twice a week with a gravel vac. I have a pretty big airstone in the back right hand corner of the tank and a HOB filter on the left, so I dont think there is much of a dead zone.
I attached some more pictures, as you can see the only BGA (if that's what it is),and some BBA that's persistent is on the left hand side of the tank. The right hand side (no direct sunlight during the day, large airstone) is almost entirely algae free.