I’ve just gotten my soil, nutrient, light and ph monitor today. Thanks for the tip on adding PH Down.
Apparently all my plants have low ph. It should be between 6.5 and 7.0, yes?
@DEVACOOKIE - pH down is used to reduce the pH of the water to make it more acidic. Most water from underground sources is slightly basic - a pH above 7, sometimes as high as 8.5 or so. However, there are locations where the water is acidic (below 7) and pH up is used to increase the pH if necessary.
Most of the advice I have seen for growing bonsai is to use water that is in the 6.4 to 7 range. Most of the nutrients are readily available to the trees in that range. However, there are some dessert plants that like a more basic water and soil, but they are the exception rather than the rule.