Well i feel like a few mistakes have slowed growth down for both of by girls but with one starting to flower and the other pulling out of ultra slow mode(cold stress)..there looking great and both smell amazing like a..skunky, cheesey gas smell!!!!
I use a small room heater in the area my rooms pull air from. One with a auto thermostat that you can set to maintain a minimum might be beneficial. Good luck with the grow. Any questions please ask. 🍻