curling and yellow tips

Hello all!! This is my first post so please bear with me. I am have some sick girls and need some help. This is an indoor grow that is in a grow tent with 2 600w lights, a 435 cfm fan and pleny of ventilation. I am using 3 gallon grow bags, with mircle grow mosture soil and fox farms grow big, tiger bloom and big bloom with humbolt honey carbs. I also use only spring water, my ph is 6.5 and I turned the girls back to 12/12 7 days ago. They are doing well except for the leaves are a bit droppy with the tips curling under and turning yellow. I am unsure whats wrong with them. If anyone can help, the girls would appreciate it.

well my leaves started curling but never got yellow,the drooping of leaves is probably from over watering it, how often do you water?
and the yellowing of leaves; where is the yellowing occuring, in the tips?

Without any pics, no answer can be accurate. This could be alot of things, overwatering, K def, N toxicity, heat burn, light burn, nute lock out...

We need a pic and some details:
did the problem start at the bottom of the plant or at the top?
has it progressed since your first post?

Doctor Cannabis said:

Without any pics, no answer can be accurate. This could be alot of things, overwatering, K def, N toxicity, heat burn, light burn, nute lock out...

We need a pic and some details:
did the problem start at the bottom of the plant or at the top?
has it progressed since your first post?

Click to expand...

Yeah i agree, that is a symptom of to many different things to know without a picture. Post a few and we will do our best to give you a hand man

WonderWhatsNext... amazing avatar!!!

I have uploaded a few pics. They are in day 8 of flowering I have not nuted them for 5 days and the last time I used foxfarms big bloom,tiger bloom and carbs. ph is 6.5 . I water about every 4 days approx 4 gallons of spring water for 31 plants. Not sure why they look the way they do.

P def. Since the pH is ok, all you need to do is feed it more.