Hi i was wondering two things about my grow room/plants. The first thing is I'm growing in my closest and the space is about 2x2 and around 8 feet tall. With this height and width how tall should i let my plants get. Second question is i haven't used any fertilizer yet and some of my plants have little yellow spots on them not on the edges but in the middle of the leaves what is this from? Thanks a bunch for any answers