Soo i'm growing my first plant ever (grape god) in a phototron (little grow box with 6 cfos and a hanging light). I'm on day 47 of flower and have about another 1-2 weeks left, however, for the past week I've been seeing leaves turning yellow to the point of them fall off like the fan leaves on the lower part of the plant. No yellowing in the bud leaves just lower fan leaves and it seems like its getting further and further up. I try to pluck them right before they look like they're going to fall off and i'm plucking/finding 2-6 dead/yellowed leaves a day.. Now my question is, is this normal? I thought the leaves just turn yellowish and it moves up and up but didn't think the leaves actually yellowed to the point of falling off? Thanks guys