Hulk Chill Pheno Hunt

A couple issues this week: Issue #1.) The plants looked to be suffering stress. Light green leaves at the top of the canopy, and red/purple discoloration at the tips of the leaves. Going over my Trollmaster data I saw that the air temperature in the tent peaked at 92.5 F back on the 20th. I had been providing supplemental Co2 at 1200 ppm, and the leaf surface temperature was consistently 5 degrees cooler than the air temp, but clearly something was wrong and my best guess is heat stress combined with light stress resulting from the plants growing to within 14 inches of the fixture.I've since rigged ducting from my central AC to the tent, raised the light to 24 inches, and set the Trollmaster to begin dimming the fixture if the air temperature exceeds 82 F. Issue #2.) There are still a few thrip pupa munching on the leaves. Nothing crazy but something I want to stay on top of before they get out of hand. I've dropped the RH to 55% and started spraying Lost Coast Plant Therapy at lights off. I will be spraying every day after lights off for the next 3-5 days, and hopefully I'm able to kill them off once and for all. Other than that I watered in some microbial mass over the weekend. The plants are filling up the 4x4 nicely and the one pheno is stacking up beautifully. Each plants is getting about 2 L/Day of plain water PH'd to ~6.5. I'll be posting a grow question to confirm my suspicion about heat stress. Stay tuned for next week's update!