Alaskan Purple Auto / DWC

Thank you for following along so far, here's my Week 6 break down: 3/4 plants started flowering (non lst, blue and stunted plant) I've added a Mars Hydro TS600 to the setup to cover more square footage. The plants love it but it's been a battle keeping temps down with the lighting and summer heat. I switched to EC measurements and set it to 1.7 across all plants, pH is in the 5.9/6.0 range. They seem to be responding well with rapid growth and healthy leaves. I also introduced a bit of GH Armor SI to my water before the nutrients are added. Jacks 321, so simple and easy to use for me, also cost effective. My formula is switched to a 421 now Per 4 gallons: Armor SI - 1ml Jacks 4 - 2 tsp Jacks 1 - .2 tsp (cutting back on epsom) Jacks 3 - 1.6 tsp pH down as needed I've been doing some light defoliating on older, weaker leaves but that's it.. this tent is getting packed! I do want to defoliate more but have heard mixed reviews and don't want to mess with my plants too much. What are your thoughts? The stunted plant in the back right has taken off, I topped her as an experiment and it seems to have responded well, she's the tallest at this time at about 25". I've been battling temp, humidity and electrical problems. I introduced an AC to help battle temp and humidity but it over loaded my circuits since I have another AC going in another room. I just have to have only one AC running at a time (they are portable). Next time I won't be growing during summer months, it's just too much of a hassle. If I do it would be 1 or 2 plants at most. A dehumidifier is definitely in the cards, I tried one off Amazon that claimed 600+ sq ft but wasn't doing a thing. If you have suggestions for a 4x4, leave me a comment! PEACE