Well, for starters you could take the humidity domes off, as they are no longer necessary later in the plants life cycle. As a matter of fact, I only use them until my seedlings are a couple weeks old. The only time elevated humidity is really crucial is when plants are young, because they don't have a root system to absorb water yet. When a good root ball is developed, the plant can drink from the soil, and no longer requires as much water in its air. If you were to keep humidity domes on your plants their entire lives, they would miss out on a lot of fresh CO2 and wind to make their branches strong, which are both more important than high humidity to a cannabis plant. Moral of the story, take off the dome when your plant outgrows it, or if your dome is huge just take it off when the plants are a couple weeks old.