so DL, tell me why you get products for the last ~10 days of flower i.e General Hydroponics' Ripen. i use it and it's great. last feed is 2 - 3 days from harvest. all your positive-negative ion crap is bullshit. the fact is the plant needs nutrients when it flowers. depriving it of food means it will never reach its full potential. nutrients stored in the plant will be used up. that's why some of your nugs have yellow leaves! deficiency!