Hello fellow growers, i am raising a girl autoflower called jack herer and i have noticed my leafes are drying out a bit and having theese spots/gray areas on some of the bottom nodes, can this come from spraying the leafes/under the leafes with water or is it something else? First time growing so appreciate all help i can get, my other jack herer is much more healthier but is also beginning to get the same marks but not nearly as much, i will post photo of both so you can see, photos are taken on day 15 after coming up of the coco