yep you have the right idea, maintain that PH and thats fine.

you might be getting confused with hydrophonics, where the water is needed to be slighly lower (more acid) i think?

growing in soil that ph is fine for your water and soil.
babystarbud Reviewed by babystarbud on . IDEAL Water PH Question... Ok I have read and read and read about Ph and Its importance to this plant and all plants. I can now acuratly test the Ph of my water with a digital Pen. Hurrah!! I have herd diffrent things about Ideal Ph. My question is. If I am using ProMix BX. What should the Ph of my water be at the three stages of the plants Life. these are the elements I have. Boatnicare PRO Pure gro/Bloom and Super thrive. SeedLing .... before 3 weeks Adding only SuperThrive. Vegitative .... Adding Rating: 5