It's my first grow, and its only some mid but i would still like for it to be successful...I'm about 5-6 weeks into veg on my eldest plants. no nutes, just potting soil and pearlite mix. im using 2 cfl bulbs (60 watts i believe) my ph is 6.4-6.5 and it doesnt get too hot. my whole house stays right at 74 degrees. i also have a fav in the grow area. but my fan leaves are begining to seem very dry and cracking away slowly but surely.. also have seemed to slow down growth. i clipped the lowest fan leaves because they pretty much dried out already. whats going on, is this normal?