for now,use two flood cycles,one 15 minute flood when the lamp is on,and one 2 hours before the lamp goes off,gradually increase to 3 then 4 over the next 14 days,and when they start to take off,flood for a 1/2 hour every four hours,thats a tall growing strain you've got,so by the time their around 12",you can induce photoperiod(12-12)....bonbon