Here is the deal, using RO water after adding nutes the pH will be about 6.3. It starts to drop right away. Down to 5.40 in 2 days. Adjusted back up to 6.4 and it will start to drop again. Aeroponic system with strawberries. I've not had pH drop like this before, any ideas? Oh yes, using General Hydroponics straight up "Simple System" mix for grow.
"Doing 10 with no Chance of Parole"