No it’s just when I open the tent to take pictures or work on the girls the humidity drops 10-15%. They are getting big now and actually without a humidifier it’s about 60-62% humidity after I water. And the exhaust fan is over 50% strength with tons of airflow from my fans. So I am gonna have to put a dehumidifier in there as soon as purple Thai starts bloomingDid u say u left it cab open? Something I didn't know or even think of is light leaks can effect auto flowers during flower just like photoperiods.