Yeah, it's fine. Some even leave the lights on for 24 hours a day for the whole vegetative period. Personally I just prefer having a dark period. Some say the dark period promotes root growth, but I can't really say it does for sure. I just do it with mimicking nature in mind.
Orzy Reviewed by Orzy on . Light for seedlings Would using a 26 Watt CFL bulb on a recently planted seedling enhance its growth potential, or should I wait until it sprouts to add the light? Ive read instructions stating either method so I was wondering what the best is. is a 26 Watt bulb enough when it sprouts? Rating: 5