I have had 16 goonana kush plants for a week and a half. All und 2 1000 watt hps. The room rus at 75 degreen with 35% humidity. I got the lights going 24/7. I'm using pro mix hp for the medium and they're in 5 gal buckets.. I have recently seen that the new growth is curling down and is a lighter green. It looks like overwatering or possible problem with zinc. I wuz given house&garden aqua flakes a+b, roots excel, multi zen and super thrive all of which I've been using. I water every other day. 2 dayz outta the week with nutrients then one day straight water. I p.h. the water to 6.2. I would like to make changes, but what specifically?!? I think I may be overwatering and I know for a fact I need cal mag. Humidity is also an issue.. I would like to give them a nice solution in a foliar spray and find what watering cycle is best.
Yup...pics will help. How big are the plants right now?...if just babies you are probably watering too often