practice all of these techniques, OG is a strain that will never get old so work that bitch to perfection, every answer on here is right. you just have to figure out which one is right for your area or setup. you can start her flowering soon after she sprouts and that will keep the stretch down.
1. Size of room? 8'L x 11'W x 7' tall
2. How well insulated is it? not sealed I called it semisealed but it keeps the heat out and the cold in
3. Total wattage in the room(s)? 1790 watts 100o watt hps 430 watt hps and an LED 360watt for veg
4. Burning gas for Co2? regulator with co2 sensor and...
the formula without a meter/controller, for a co2 tank and regulator is like this. LxWxH divided by 1200 . So you get the cubic feet of your grow space, then you divide that by 1200 and the resulting number is what you'll set your flow gauge or ball at on your regulator. Why 1200? because...
Ok the statement stupid I was just quoting the magazine my friend. If you dont believe what was written your more than welcome to look at it yourself. I guess the Labs are full of shit..