Do Sweet Dos 1st Grow

Girls are 9 weeks old and are really jumping into high gear with their vegetative growth. Will be flipping to 12/12 flower cycle next weekend. Have been staying with the same feeding schedule with nutrient feedings every other watering. My canopy is almost perfectly even, I’m very proud of how well they’ve all responded to training. Right now I have about 20 inches of space to work with for the stretch but I think that will be fine. The other plants in this tent are still small but I’m afraid of running out of room for the Do Sweet Dos. I haven’t encountered many issues during my first grow but this flowering phase has me a little freaked out. I do not plan to use a humidifier or dehumidifier nor any AC to control temp. Feel free to leave any advice or if it looks like I’m going to nosedive, please let me know. Thanks for checking out my grow!