well that may not be fully true. You don't find that co2 decreases on the time you veg and flower by several weeks? When I use co2 during veg I save about 2 weeks because the plants reach the desired size sooner. The same with flowering so in the big picture it does save on the electric bill, for me anyway.
Zandor Reviewed by Zandor on . what ya think? 6x6 room with 4-600w HPS switching to 6x6 room with 2-600w HPS BY removeing 2 lights and adding 2-6ft. light movers. Question is: Will the addition of a pair of light movers decrease light usage without decreaseing the harvest? Rating: 5