1st grow, cant figure out whats wrong with plants!! Please help!

okay so heres one picture of the northern lights and as you can see the leaves are curving up and sort of cupping and the tips of some of the leaves are also drooping...




here are some of the lemon skunk (they all are LS except the one in the middle to the right) and as you can see all of their leaves are curling downward and they just look sort of patheticly small and scrawny compared to the rest...



and lastly do these look okay??




thought the problem with overwatering at least with the lemon skunk so i cut back on the watering there but they still dont look any better..

i need help!! thanks

looks to me like severe heat stress, or your PH is off. a lil bit of both actually.... do u check PH, and whats your setup like? temp/lights/nutes...

Looks like a bit of heat stress and over feeding. Maybe back off the lights and nutes a bit.

the setup is a 1000 W metal halide and a 600 W hps ... they are about a foot and a half away from the plants.... also got a few fans blowing on them.. the temperature in the room is about 78...

and yea just checked the pH a few days ago.. 6.8

started feeding a very small amount of fox farm grow big but stopped bc it looked like some had chemical burns so as of now they arent getting any nutes

you want to drop your temps bro, try to keep it around 70-75ish. and 6.8 is okay, you wanna lean more towards 6.0 though, N and a few other elements arent absorbed very well when PH is above 6.5, witch could explain your nute burn, as your plant will eat but have an abundance of some nutes, while lacking others, causing metobolic(nutritional) imbalances. and the leaf tips curling down is most likely because of the nute burn.