photoperiod for cuttings

I was wondering if I could put my cuttings in my vegitation room because i am limited to space. They will be in domes under flor but pluged into my timed outlet for 18/6 with the mothers. Will they still root ok and stay alive?

Some people only use 18/6 for their cuttings. I honestly don't think it makes much difference. You'll probably get slightly more stretch under 18/6 and slightly less growth in terms of weight but the difference will be negligible.