root bound maybe thats all i can think of
How close is that fan to it? I had a plant once do the samething cause I put a fan too close to it. It was like it wind burn the leaves. They looked just like that. All dried up and shit.
also ...anyone kno how much a 400 W HPS is with ballast??? and will that plug into my plugs in my house or will i need to buy something to do that.. if i do how much will that cost.. cause im building a vegg and flower room this weekend with my step dad and we are gonna neeed lights too but dont kno where to find it how much it is and if it will plug into the wakk