Quote Originally Posted by tevfik
What do you expect, everyone will tell their opinions based on a couple of words? Not even a post, only a tittle.
And yes, there can be very many of answers about down pointing leaf tips.
But, there can be specific answers for you if you ask properly, can't there? Give more information get more help.

Tip: If all of your plants are sick, first focus on general conditions.
Im growing in a grow tent under a 600watt dual spectrum light , in plagron soil with perlite,. light is bout 24" away ! maybe to far? , with a 4" rihno carbon filter and fan and a rotating fan inside tent,, i have 2 4" ducting from the tent to out side for fresh air ,. PH is roughly 6.5 give n take , dnt know whats coming out tho ! , temp is 80-82 on , and 65-70 off , humid i dnt know !, these plants are only a week old in my hands , bought them as cuttings , i watered them today , the last water was 3 days ago!,. two plants are dark green with yellow tips , the rest are light green , with yellow showing through , and yellow tips , today i noticed the leaves have started to point down and some leaves have grey spots ( only dark leaves have the grey spots)

I would put picks on but its not letting me do so !