The Spice of Life, keeps it Interesting...

After 30 years of Gardening ( mostly non-med ) I find I have a better crop overall with a Dark Period of some sort. Since I'm only Veging with T5s I chose 20/4, if I was using MH I would cut back to 18/6 (400w) or 16/8 (1000w) but that's just my opinion i.e. ( a belief or judgment that rests on grounds insufficient to produce complete certainty. 2. a personal view, attitude, or appraisal "-)...