help

i have four plant and they are acting kind of funny. slowed growth, sagging and curled down leaves. ph is right at 7.0 and i really dont over water. keep the soil kind of dry. getting brown spots on some of lower leaves and some leaves are groing in twistid or deformed not many though. they used to reach uppward but not any more. some tips and edges are yellowish.

how old are they and what are you feeding them?
what are your temps when lights are on and when off? it may be a little high.
what is your humidity? may be to low.
they should have a good root system now, so when you water give them a good watering so the pot is nice and heavy. maybe until a little water comes out the bottom. then dont water again until the pot feels lite.

they are right at 5 weeks. i havent fed them anything yet. have a fan going and get pretty good ventalation. mist them twice a day. two 150watt mh, two 36" actinic (blue), and 400watt hps lights on them. right at 10-12 inches.

mayb the lights are to far way? seems like that may b what it is....but im no expert