So it's winter time up in the North East and I am trying to take advantage of the cool air outside. Usually I am battling the heat, now I'm battling the cold... :cry: I run two tents, a 4x4 for flower, and a 3x3 for veg. My daytime temps are perfect, right at 77F-78F, in the flower tent. It stays around 73F-74F in the veg tent with lights on. Now my question, for the past three days the night time temps have got down to 60F. I am in my 6th week of flowering and 4th week vegging. Are temps that low going to hurt my plants? Or did they already?