Originally Posted by smallarmsfire

Keep your temps from fluctuating drastically!! maintaining low low RH is not as important as dialing in your temps so that you experience less of a swing when the lights go out! Your plants, if healthy, will typically be great at adapting to the conditions they are brought up into .. but when you see these radical variations in day/night temps (outdoor growers throw your hands up!) you really need to look more specifically for genetics suited for fungal&bacterial resistance.