Hi all, Just a quick question on pH of mounted plants. I recently got a pH meter and was testing some of my water. My RO water is around 6.8, whereas my tap water is at around 8. I recently read about testing the pH of run-off water to assess the grow medium, so I decided to soak some of my plants in my RO water and test the bathwater. The result was a pH dipping below 4. I've been a recent convert to using untreated cedar shingles for mounting plants, because I've seen some vendors use cedar with success on relatively delicate species, and it's cheap/easily accessible. I was initially concerned that the repellant effects of the wood might deter root growth. However, I mounted 2 dozen seedlings on cedar a few months ago, and roots seem to be growing and attaching to the cedar well, with similar if not better affinity compared to cork. Should I be worried about eventual detrimental effects of this pH of 3.7? Should I be increasing the pH of my water to balance this? Do I need to do anything about it at all? Any guidance would be appreciated!