Hey Rh try using a cool mist humidifier or two in veg to try and raise humidity levels,vegging pants seem to love it and spidermites hate it.You can use them the first 30 days of 12/12 or so but I wouldn't after flowers are forming good.They are very cheap not like a de-humidifier.I set mine up a couple feet from the grow and an oscillating fan a couple feet from the humidifier