Diablo Rojo XL auto

Both are growing nicely this week! Having a few issues with humidity in the tent, was peaking at 91% so added a 2L dehumidifier and it’s down to 76% I’ve increased air flow but can’t get it below 76% unless tent is open then drops to between 57-61%. Thinking about adding a second dehumidifier and possibly opening the tent for 20 mins every couple of hours. Fed for the first time day 17 with Xpert nutrients master grow and master root. 1ml of each per litre water, ph’d to 6.2