If it’s too acidic, it buffers it up until, after a certain degree of acidity, pH level, the reaction automatically subsides, because
calcium and magnesium carbonate react with acid, so once the environment is in an acceptable range, the activity decreases.
I mix it in at every opportunity, right into the soil before the grow.
But sprinkling it on top, working it in, and watering it in—without drain at first—I think works well too.
Cheers
Edit:
Just checked the manufacturer’s website. It doesn’t say anything about it already being limed. A combination of highly potent slow-release fertilizers is supposed to be in there, though. You’re supposed to feed as needed. But I actually understand it as having been invented as a living soil experiment.
That wouldn’t have been my personal first choice. But it is what it is now.
I checked the water values for my region and add everything unmeasured and without adjustments, apart from letting it sit before watering (min. 24h) to reach room temperature and off-gas a bit if anything is present, pouring it in, or into the tray from below.
The lime and lactic acid bacteria regulate that in a mutual back-and-forth
Hope someone else can help you adequately with that, but with the dolomite, you’re already well set up.
I started with a clone. Just a bit careful at first. You can skip veg fertilizer, the soil is pre-fertilized enough. You only need to start using bloom fertilizer around week 6-7 when the flowering phase begins. Before that, just Cal/Mag and keep the pH around 6.3 (6.0-6.5).