i dont think its heat stress atleast not alone... whats your ph? what you feeding and how much? when did this start? how hot you think it gets in there? is there proper vent. or airflow in there? also the other plant looks overwaterd, or underwaterd[/QUOTE
it started yesterday and i dont know the temps but its def in the 100s cuz thats what its been outside this week i havw no airflow besides the sides but i am going to put a box fan well two in to push air and pull it in but ive been feeding foxfarms and the tomatoes just got watered right before i took the vid it hasent been watered and ill chcck ph tomorrow ive been using fox farm nutes but its last watering i think i overwatered it.