New grower, indoors, yellowing leaves

[SausageMahoney]

RO water pH question

Add calmag to your RO to get it up to 250-300 ppm. It then becomes PH stable and can be used to adjust your soil. PH unstable water will become adjusted by the soil instead.

Does this help any. Im not RO savvy either. @midwestguy @AfgVet @Docnraq