I'm having a hard time finding some straightforward answers with pruning. I've got some plants that are 5-6" tall and am planning on topping them when they get bigger. They have some older lower leaves that I'd like to trim on a couple due to some bad growth. Am I safe to take them off? They're the first true leaves and they're now below 2 other sets of leaves. Any other advice for pruning? What's the goal when pruning around preflower bud sites on the plant? I'm going into week 3 of veg and don't want to do too much too early.