how many lights would I need, for a closet its 5x5, I want 4 I'm gonna have to use gallon pots, I thought of using foam coolers the square shaped one's, I germinated in Styrofoam and the cups worked really well but how many lights shuld I have and what should the nutrient levels be, I know more nitrogen in the beginning, and mots phosphate or potassium in the flowering stage.