sorry I am new to this thread and didn't realize you sent me a message. Keep the lights about 30 inches above the plants. Feed nutrients every other feeding. It is very common to overfeed. The nutrients are very potent and can burn the roots. Humidity is hard to control. Keep a small fan blowing on them if the area is really humid. The fan actually can strengthen the plant and I have seen shoots grow taller to protect the main cola from the wind wich was pretty cool. 35 humidity is fine. Its when its up to the 50-60 that can be a problem when buddin and cause mold.
sorry for the 2 week delay.
my bad
-purp