Hashyanswered grow question 3 years ago Hi there, had a scan through your diary and the plant looks good. I'm on week 6 of an auto and my ppfd is 400, which is about 25dli. I find my plants don't ever look great 1st thing when lights come on or just before lights go out. Probably an hour after lights on they look good and about half hour before lights off they look tired again. Only on 18/6 light schedule. Your in the correct ph range. I do prefer ph to be around 6.2 to 6.4 in soil. You probably don't have anything to worry about. Just keep your eye on it. Watering wise just water when top inch is dry, if it takes 4 days inbetween watering then so be it.