This is my first grow. 2 plants in a 36x36 tent with 3 of the 150w CFL bulbs and will be adding a 4th as soon as I get it. Using ocean forest soil and the fox farm trio nutrients. My ph level on my water is 7.25 . I am 15 days into flowering and one of my plants is having spots come up on the leaves and some of the leaves are even drying up. Temperature is anywhere from 69-75 with 45-55% humidity Can anyone tell me what's going on and what I am doing wrong?