Thank god for rollitup.org or else this would be freaking me out. I just noticed and posted the same question...thanks for the responses!Ya it is normal most plants start to lose the bottom leafs as it grows, they just arnt very useful since they can't get much light, so the plant stops wasting food and energy to keep them alive.
Shhhh, learn, then teachWhat stage are you in veg or flower? If veg I would imagine you need to feed it nutrients. I used fox farm big bloom. Maybe the veterans can chime in.