Besides over or under watering, using too much nutrient is second on the list of preventable mistakes new growers make when growing weed indoors.
My new Kindle Grow Book doesn’t even have a chapter about nutrient deficiencies because I don’t have any! I use DYNA-GRO – It’s Perfect
FYI: If you use one of these links to purchase, I get a small (actually teeny) commission from Amazon. It helps me pay for this website. 🙂
If that bugs you, just go to Amazon and search out these products and place your order, I won’t get anything. 🙁