hi all, my mexican sativas are cumin on a treat under my four foot fluros and i just aquired a 150 watt hps for 20 quid for budding and was woundering how close should u have the light to the plant?
14 to 18 inch from top of plant,you want to keep the heat about 80 any more and you will burn the plant... just have good air flow and you will be A.O.K