This started a bout 3 weeks into the grow. My plants fan leaves than are getting dry spots. I thought I lt was happening because I misted the plant with nute water. I have stopped misting and it still shows new spots even on leaves that weren't there when I misted them with the nute water. Im 41 days in and have been feeding It with fox farm grow big at 3 tsp to the gallon. Since 2 1/2 weeks old. My temps are between 80 and 88 amd the humidity around 35%-40%. I dont have a ph kit so dont balance ph but I do use RO water. http://forum.grasscity.com/index.php?/topic/1300382-First-Grow-Journal