So say I am running CO2 in the 1200-1500 ppm range all throughout flowering, should I cut back on the CO2 concentration toward the end of flowering (say the last 2 weeks) to let them ripen up? I've have heard some people do and some don't. I am looking to get optimum quality and yield, so if keeping the CO2 levels constant until chop at 1200-1500 ppm will add a few more days but bigger yield, that is no big deal, but if it adds a couple of weeks that is. So I am looking for those who have any experience and knowledge on the topic. thanks