i actually have the eXACT same problem right now with one of my plants. Someone told me it was a ventilation problem, but that aint it. N then someone else said it was a P deficiency, but i aint sure if thats phosphorus or potassium, lol. So if we got the same problem bro, if you fix it, could you tell ME what the prob was??? i know i need to go out n buy somethin else cuz my FF nutes aint workin to fix it. Ive been givin my plant a steady regimen of nothin but water for the last week, but its not improving at all. I dont know what the fuck to do either man.