Yeah, a couple years ago when I was doing DIY co2 on this tank, I dosed nusalt for potassium, eposm salt for magnesium, and used flourish as well and also overfed the fish a bit while running 260 watts of pc lighitng. My tank did awesome then, but when I moved I stopped all that. I tried to get the diy co2 up and running again a few months ago but found that mixing the diy for such a large tank is expensive and aggrevating to maintain. My plants are hanging in there, but they will be so much happier when I get the appropriate nutrients for them. I'm now running 216 watts of t5ho lighting as well, of which to prevent algae growth I cant run all 4 bulbs at once right now.