Humidiy levels

Check out this handy VPD chat, it gives you ideal RH and temp ranges for maximum plant growth. It is a very useful tool and works quite well https://www.dimluxlighting.com/wp-content/uploads/2019/02/Leaf-Vapor-Pressure-Deficit-VPD-1.jpg Granted if you don't want to get that technical about it. these the are the rates I follow. Seedling/sprout 1-3 weeks 75-80% RH young-old plant in veg 60-65% RH start of flower 50-55% mid-end flower 40-45% If your having issues keeping humidity up try an ultrasonic diffuser or if its keeping it down a small dehumidifier inside the tent, or outside it, removing ambient airs humidity before it goes inside the tent. Best of luck and Happy Growing!