pH buffer organic nutrient mix

Anything organic is "that which is yet to.be broken down". Organic nutrient solutions tend not to have a fixed pH because their composition is dynamic; the ongoing biological decomposition of organic matter constantly releases various organic acids and other compounds that alter the solution's pH over time. Making sure you have adequate buffering capacity is key. More CEC =more buffer. Liming is a traditional and widely accepted practice in organic growing. Dolomitic limestone or Calcium carbonate whenever the medium needs balanced back alkaline. Most grows will slowly over time naturally drift towards acidic. Harder you try and dictate precise organic pH, worse time you will have.

The acidic environment serves as a natural preservative. If the pH rises above 3.8 or 4.0, the beneficial microbes may begin to die off, and the solution can become vulnerable to putrefaction or contamination by pathogens. Don't pH perfect the whole bottle just pH after adding all feeds to water, using base to ballance out will help to a certain point I just use pH UP from Growth Technology it contains/is potassium hydroxide (KOH).. I use citrus acid to lower ph.

ph-balance before you add it. That's the smart thing to do. If it's a consistent pH, then you can add a predictable amount of a base to correct it. Find a base that isn't going to release a bunch of Na+ ions. Sodium bicarbonate is fine to use "once or twice" but don't make a grow-long habit of it. I've never had to ph-up, so i'm more familar with cheap acid options like 5% white distilled vinegar (acetic acid). Just look at the ingredients of a "ph-up" product, then buy "that" base instead of the priced-up garbage pH-up/down products that marijuana companies sell you. the soil may or may not mitigate it to some extent, even if it can that will have limitations - in scale and possibly duration. If it's loaded with garden lime, for example, that'll help balance it out. To learn that you'd have to do some trial and error and see how it plays out - not just overnight.. potentially weeks to know the impact of not ph-balancing.