Any light cycle that has 16 hours or more will keep your plants in the vegetative state. Most guys either use 18/6, 20/4, or 24/0 nowadays for a bunch of different reasons. In my experience, the more light you give them the faster they will grow. Some guys like to give them a little rest or some are trying to save on electricity. Adding more light won't hurt your plant and will only make it grow faster till it is time for flower. Figure your plant will grow another 150% of her size when you switch cycles. So a 2' plant will probably grow to 5' in flower. All this depends on strain and environment as well.Can I add more light to my 16 8 light cycle.
The roots probably coming out if you leave water sitting in the drip tray, the roots seek water but will auto prune when they reach airI've been doin this 16-8 light cycle my plants are 9 inches tall. Is this light cycle good? And I know roots form during dark periods, is this why my roots are already coming out the bottom in 5 gallon pots?