Pretty sure you can pH decrease anything you want without a problem to nutes… lol. If your growing organically you don't want your H2O to be to acidic or it will kill the microbes and block the intake of nutes. A pH between 6.2 and 7.0 is fine. Your organic medium will usually buffer any pH of H2O to an acceptable range for your plants as long as your medium is healthy. I use RO water that pHs to about 6.8 lately so I don't add any decrease to it for the organics. I pH decrease to 5.8 for the hydro grow I'm running too. Happy gardening and Peace
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