Sour CBDzzz

Day 28 of Flower: The gavita pro 1700e LED is now up to 85% of full power and the Co2 set-point is up to 950 ppm. Temperature set-point is 82 F. I have an intake fan connected to the Trollmaster with the DST-1 temperature controller. When the temperature exceeds 82 F the intake fan draws filtered cold air into the tent which lowers the temp to 78-79 F and then shuts off. The cold air is dry and has been keeping humidity between 50-65%. The leaves have been showing signs of nutrient burn on their tips, and although the inflow EC has not been very high (1200) there must be salt buildup in the medium that needed to be flushed. I ran a few gallons of RO through each of the buckets. Hope that alleviates the nutrient buildup in the coco. Fertigation schedule has been adjusted. Fewer events with a higher volume of application. Hope this prevents salt buildup moving forward. Lights on 9:00 AM Feed 1 @ 9:30 AM for 55 sec Feed 2 @ 12:00 PM for 55 sec Feed 3 @ 2:30 PM for 55 sec Feed 4 @ 5:00 PM for 55 sec Feed 5 @ 7:30 PM for 55 sec Feed 6 @ Lights off (9:00 PM) for 55 sec Final leaf strip on day 27. I took every fan leaf with a petiole to increase air flow and light penetration through the canopy.