Leaves are yellowing a bit earlier then normal. everything has been on target. ppm in the pot starts at 1180ppm and by the end of the week it has built up to about 1600ppm. then I have been flushing 3l per pot to get it back down to 1100ppm, repeat. theses buds smell absolutely beautiful. Oh I upped the PK .5ml per litre for this week coming up. I backed of the A&B a little to keep the ppm at 1180. I'm going to now turn the co2 off for the last couple of weeks.