WOOD ASH!!! (dolomite lime?????)

microbial life, bokashi any kind of life in soil keeps it in the right pH. I never care about pH, I never had problem about pH, just add life to the soil.

@DissNoof The PH of 5.7 apply to Hydro growing only. For soil growing is somewhere between 6.2-6.5 optimal. Just U know

hey there midwest, at 6.5 your pH is actually quite high , you should be around 5.7 for optimals , so what you really want to do is use fluvic acid which should make sure you're in the right pH bracket. Either that or actually use something like trichoderma harzianium and beneficial bacteria. that will actually buffer your medium in a sustainable way . Hope this helps ! 🚀

Adding 2tbsp in 2 cups of water raised the ph by 2.4, the TDS up by 1900ppm and the EC up by 4000. (I didnt have enough room for this part so putting it down here)