My tent runs no hotter than 78f, I corrected my issues though so far, my humidity was to low in the tent, this was my last post describing it. I have the light now at about 30 in, at 100%, after I threw back in my humidifier the taco leaves subsided, thenleave became a noticeably darker green and I slowly increased the light intensity. Also my soil ph is low as well. It may be something different for you but that was my problem, tent was too dry and the light was burning up the top leaves
“”well aside from everything, it was a combination of too much light and too low of humidity, I removed the humidifier from the tent about 4weeks ago to start dropping the humidity, I threw it back in the tent last night, taco leaves corrected themselves, this morning I slowly increased the light intensity back up and have seen positive results from the plant. The thought hit me last night to when the leaves started curling which was about 3 weeks ago. So I did some research and threw it back in. Also my soil ph is too low as well, so have some stuff coming today to top dress for the next watering.”””