I need some help here, if toms around or someone who has some good advice Id appreciate it. I recently changed the lighting over my 29 gallon hi tech tank from a 65x2 coralife PC fixture + a 20x2 t12 fixture to a single 150watt Metal halide (the fishneedit.com one with their 8000k bulb). As I expected I just had a major aglae explosion of BBA. I am running the halide about 10 inches above the tank for 5.5 hours a day. My co2 seems fine with a drop checker, although Ive been continually easing it up and keeping an eye on the fish. Tank was fine then I noticed a little bit of it which I think came in on another plant, I changed some water, removed some and all was well for a few days. Then I missed 2 days of dosing, and all hell broke loose. I think maybe Im dosing too lean to begin with. I think I may have nitrates in my tap water as test always show them present so I dose 1/8tsp 2x, 1/16tsp 2x P, 1/8 tsp 3x K, 4ml flourish 3x, 1-2ml Kent Iron 3x all weekly. I also add 2ppm of MG and 7ppm Ca at water changes which are 40% every 5-7 days. Im assuming I should have upped my dosing with the addition of the higher lighting but assumed I was already in excess. My tank is pretty well planted but I dont have a ton of fast growers. I have bacopa C (about a 12 stem bunch 12" high), about 12 stems of L. Aromatica about 10" high, a nice size bunch of narrow Java, 2 anubais nanas, 4 buches of blyxaj, and about 10 small 3 or 4 stems bunches of dwarf lobelia. A decent amount of plants but not alot of fast growing nutrient suckers, like rotala, and ludwigias wtc. I am going to try some flourish excel, I already pumped up the co2 some, Im going to drop the lighting period to 4hours daily, and am waiting to hear from someone here as to if I should up my dosing (Im assuming I am). Some of my plants are almost totally covered. Should I just toss them and add more fast growers as well? Or will the excel clear them of the BBA? Any advice here will be greatly appreciated. And no Im not ditching the halide, Im not a newbie, just trying to get this right. I dont care how much work it is. thanks.