if you're having issues with a new soil mix.... maybe you added too much lime?
IMO, the lime is not the issue and a peat based mix benefits greatly from having a liming agent. I feel the issue is that my peat has been neutralized after a year and a half. The weird part though has been that my vigor has been great, plants praying to the light 24/7 (yes even in the dark with some strains!)... and they look fine, no def or tox, stretching as they should in flower, but just small buds! I'm hoping that my new mix will provide some insight as to what is really going on here and give me a baseline to start with again. Also wondering if the cold temps are compounding the affects of the soil too. Looking to solve this mystery in the next couple cycles
I may even send in a sample to a lab and see what the report looks like.
i've had issues with blumats along the way over the past year or so, with them kind of messing up and running too much water through the soil... so i've been leaching out not only nutrients, but protons very likely too, which could have reduced the acidic life of my peat in the mix.
but yeah like you, i've just started taking action. I'm dumping protons into the pot by making the peat extract teas, and I also topdressed a little elemental sulfur as well but I know it takes some time to start to break down and influence the pH of the mix. Only time will tell! And I did notice that rinsing the peat one time thoroughly, the 2nd rinse is far less acidic, so indeed excess leaching does reduce its acidity greatly.