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The tight range for hydroponics is 5.6 to 6.3.Why the high PH for coco? I thought 6.2 was for soil...
Also I can't add organics to my autopots, they specifically note that it will clog up the tubes.
6.2 allows for more downward movement in the pot. The direction it is most likely to drift.
Top fertigate the day you will change the reservoir with the normal nutrient mix plus your bio-stimulants
This is interesting, wouldn't a drop like that be noticeable in the REZ tank? My PH stays stable for days,
The nutrients may be buffering to some extent or your RO membrane needs change?
Take a glass of fresh RO and measure the PH let it sit open overnight and see what happens?
Hey also, how long should I expect to wait to see the results of my flushing?
If you fixed the problem overnight.