Slurry tests of my coco shows 4.9ph. I was over feeding these plants a couple weeks ago and my coco runoff was up to 1200ppm so I flushed with very light nutrient solution down to 450ppm.
I believe the salt buildup caused a ph drop in the rootzone which started causing a calcium deficiency. So ive been feeding @ 500ppm (top drip dtw 3x a day) just calmag and base nutes(emerald harvest 3 part) at like 6.4ph but the slurry tests still come out at 4.9-5ph. I'm at day 38 in flower and it seems like growth is a bit halted.
Any recommendations on how to raise my rootzone ph?
![20210228_125405.jpg](/data/attachments/3941/3941716-d98d094f3943937bd0fdfe14a45f5214.jpg)
![20210228_125348.jpg](/data/attachments/3941/3941717-8db7028ab313b96a0ca27492364f7735.jpg)
![20210227_175425.jpg](/data/attachments/3941/3941718-a534450126b400e2dd8a6a2b7553b515.jpg)
I believe the salt buildup caused a ph drop in the rootzone which started causing a calcium deficiency. So ive been feeding @ 500ppm (top drip dtw 3x a day) just calmag and base nutes(emerald harvest 3 part) at like 6.4ph but the slurry tests still come out at 4.9-5ph. I'm at day 38 in flower and it seems like growth is a bit halted.
Any recommendations on how to raise my rootzone ph?
![20210228_125405.jpg](/data/attachments/3941/3941716-d98d094f3943937bd0fdfe14a45f5214.jpg)
![20210228_125348.jpg](/data/attachments/3941/3941717-8db7028ab313b96a0ca27492364f7735.jpg)
![20210227_175425.jpg](/data/attachments/3941/3941718-a534450126b400e2dd8a6a2b7553b515.jpg)