Nah. You'll be fine during the Veg stage. But when you switch to 12/12 you must have Complete Darkness !!! Good Luck.So it wont do anything to the plant if light next to the room it is in get into it?
if you have good enough lights yes 18/6 is better but if your usign CFL 24/0 is the best I'd findfor veg you can run 24/7 but its believed roots grow well at night? i like 20/4 myself but do whatever you want 18/6 is better for your pocket!
Well i meant the time of day that i have to start the 12/12. Like if i shut the lights off for 6 hours in the day, does that mean when i decide to goto 12/12 do i have to start it at the end of the 6hrs of darkness?