you should understand thast fans arnt used to just make the plants stems big enought to support the bud.(you could just tie the plants up ,and growth will concentrate soley on bud devolopement). fans are mainly used to keep co2 levels in a grow room a a resonable level not enought and the air goes stail and the plants cant breath.you need to be thinking about maintaining high co2 levels using vents,fans,extraction fans ,you name it. but the main thing to keep bud devolopement at it highest is to make sure co2 is in the room, then the plants can breath and grow much better.
sam111 Reviewed by sam111 on . A fan and wind Q: I have my 6 plants in a closet that is 4' x 2 1/2', under 400w MH. Throughout the whole veg. i kept the fan on them 24/7 on a low speed, i believe it did wonders for stem strength... But :D, should i keep my fan on 24/7 during bloom? Or should i only run it during the light period? Thankyou all. Rating: 5