xcrispi is growing my 'NorCal Daddy's Girl' a bit longer than normal, since using the CO2 ... where she is normally finished (10% amber trichomes), in 52-55 days, this new CO2 crop, seems to be extended another week, or so, to get there ... but, there's also a couple other changes with this last garden (different soil-less medium, nutes, etc., so that combination 'may' be the reason, I don't know ... ? ... let us know, if you notice significant changes with your CO2 use ... xcrispi is very happy with his results, says his overall health, and yield up, too ... :smokin: