Straight up dude 16/8 light dark period keep 17/7 hours extra gives bigger change for more females indica/sativa or ruderalis or liz tayler, jenny lopez aaaaaaaaaaaaaaaaaa when size ok 40 / 60cm H indoor grow put them straight in the other room for 12/12 light flowering starts so in short one room vegative grow hm light 17/7 and one room 12/12 under hps light. Good luck da dude.