jojoG2Ganswered grow question 4y ago pH value is very important. Even if you use rainwater, the pH value increases over time. And when using fertilizers or components that regulate the pH value themselves, you should pay attention to what the starting value is; accordingly, you can choose the right one (often there is a difference in products for soft water pH under 8.4 and hard water pH over 8.5).
I hope I could help you.
Good luck with your grow!
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