I don’t know that’s above I just know what
@Mañ'O'Green has told me a few times and he’s a lot smarter than me when it comes to that stuff. Or
@Waira he’s really smart either way this stuff takes me days to break down his posts sometimes
“Yes it is the calcium carbonates that cause the alkaline PH and it takes way to much buffer to make it right for growing. None of the calcium in the carbonate form is available to the plant and the little that is freed with the buffer is not worth the N or P problems you get.
It is a balancing act and some strains are more tolerant to different nutrient profiles, some people get really good at growing with their not so perfect conditions. “