today it was 79* with the lights on, i run them 4-10am. What temps should my water be? ill look into the water chillers/co2instead of putting the plants thru stress, bend the tallest grow tips over, squeeze the stem and fold her over gently for the sake of an even canopy, plus this will get light to the lower part of the plant, unless your topping just for multiple colas. your main concern though should be the temps and water