What Does 18/6 Mean?
The light cycle of 24 hours light, or lights always on, is only really beneficial for seedling growth, and after the first to second week of the seedling stage, most indoor growers recommend the 18/6 light cycle with 18 hours of light and 6 hours of darkness, the dark time being intended for root growth and a natural resting period for the plants. Going full tilt and doing 24 hours of light is all right, but you may have to add a root stimulator to your medium in order for rooting vigor to be noticeably similar to that of plants grown on an 18 hour light cycle with a period of rest.
