Sour diesel #2. 2019.

This week i noticed on the big plant i have some purpleing of the bigger fan leaves. I scewed one watering by not ph ing my water. Possibly causing what could be a nute lock out. The temperature in the room is at about 20 degrees c, little cold but in that case it shouldnt effect anything. Since last weekends feeding ive flushed both plants out twice with ph ed water. Today i fed them with only sensi bloom. Could possibly be the genetics of the plant. I dont have it on the small plant but it is roughly a week behind the bigger one. Since i only have a couple weeks left im not to worried. Just have to pay close attention to the buds.