Keep The Humidity At About 40% Make Sure There Is No Light Leeking Thru. Try Kicking The Lights To A 10 On 14 Off. When I Get Trippin Over Plants I Have A Special Room That I Throw Them All In,turn The Lights Off For 36-48 Hours. Then Go To My 10 On 14 Off. I Have Pre Flowering In No Time.......