Does Lemon juice work to reduce PH in a system?
I bought some rock wool to start some lettuce seeds and the back of the package said to use lemon juice to reduce the water ph to 5.5 to start the seeds.
I figured this would work in my system as well, which has been consistently coming up with a PH of 8.2, so I squeezed a few lemons into the system and tested the PH the next day and…
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