Fast Purple Regular seed Pheno hunt

On day 1 I adjusted the PH of my reservoir from 6.3 to 6.1. On day 2 the PH was 6.0. On day 3 the buds are really bulking up :) and the reservoir is at 6.0. On day 4 I applied a BTI drench Ph of 6.0. This should be the final application for any remaining fungus gnats. The reservoir's PH is also 6.0. On day 5 I had to PH up my reservoir to 6.2. When I get to the last half of my reservoir the PH seems to dive down instead of up. On day 6 the reservoir PH is 6.3. On day 7 I adjusted the PH of the reservoir to 6.1 and did my final defoliation before harvest. I have one cola that may have gotten pollen somehow... I cant find any male pollen sacks anywhere on my plants so it's kind of a mystery at the moment. Only time will tell and all my other colas seem unaffected.