Im currently growing 5 auto mazar , 5 orange bud , and 5 white dwarf lowryders . Im using a 400 watt HPS and a 200 watt CFL for the veg and they are coming along nicely . Still no signs of pistils so before they show up i need a bit of help How much more light would you reccomend i use for the flowering to get a respectable harvest ? The grow space is 2x2m wide is ventilated well and runs at 24 degrees and 50% humidity Also i was wondering do any of you know a good way of making homemade co2 ? Any help or information would be much apprechiated