Black coloring

hey i wish i had pictures to show but i don't my camara is out of order.... my plants are about 2 weeks old and starting to grow on the new leaves is almost black tips it doesn't look like the plant is sick but i am unfamiliar with the strain.... any ideas why the new leaves coming in have black leaf outsiddes..... its almost black or could be purple....?

it's probably purple, it might be getting a little cold in your room

its a steady 82-86 at all times in my grow room.... i just hope nothing is wrong with it

my humidity is under 20%..... is this ok? i heard low humidity builds more resin because the leaves make more resin to keep in moisture? is this true?

you want a higher humidity in veg and a lower one in flower

what is a way i can raise the hunidity