You probably watered them too much, i have also seen these symtoms from too much heat, but at 78 degrees it shouldnt be that.
rysk8er420 Reviewed by rysk8er420 on . ARGHHHH, help Hey people, ive just got back to da grow room, bin out for a couple of hours and the leaves have started to droop in6to the soil, got no strengh in them, any ideas? Cheers. Rating: 5