heat stress too close or wind burn whats your temps and how close are your lights is the fan blowing constant on that part of plant ? does the fan circulate or fixed on the one spot fans should be blowing between bulb and canopy
Temps have been in the mid 80's but the fan doesn't circulate. I hope that's what it was. I've since made changes and hopefully they will open up soon.
How long will they stay curled? I left them out of the tent last night in cooler air. I sprayed them with water a few times yesterday and this morning they are still closed.