I raised the light this evening for the last time - I could have left it lower, but I've found that the light spreads out more with it a bit higher and the outer branches get more light that way. The canopy is just bananas right now - tops almost everywhere you look, with the majority of them 10-12" above the screen. There's a few that are pushing 14-15" and have buds all the way down - they're gonna be some nice trees... I've been still changing the rez out once a week, every Sunday night - the plant seems to like it and I find it a good way to maintain close control over the ppms. It's a lot easier now with the RO water, not having to worry about ppms at all, and then once it has enough nutrient, the pH is not an issue either. I've found it very easy growing with the waterfarm so far compared to soil - I hope the taste is as good! I sure don't miss mixing soil recipes and transplanting...ugh.