I’ve been going off this seems legit worm castings blood meal neem kelp meal bone meal so far not all of them but some that I named I’ve been listing to make my own Ik I need more thoAlso this time around I've been looking at bird guano instead of bat since they destroy bat colonies to mine the stuff versus scraping bird shit off the rocks to harvest the seabird guanos. Down To Earth was what I was meaning to get but it wasn't labeled for sale in my state but the Roots Organics version was - and it comes in both granular or powder form (slow vs fast release). Just seems like a little more ethical choice.
It is very intriguing how it all works, and trying to create the best symbiotic process is a fun and some times rewarding challenge. The great thing is that we can tweek the recipe as we learn and constantly improve it. The hardest part for me is having the patience it takes to see the final results. Looking forward to more insight and organic formulas to creating the best low cost growing media I can make. Another project I want to start soon is doing my own composting, but there again it takes time. The downside for me is that I live in a very dry and hot climate without much vegetation readily available. But we make do with what we have.Looking forward to seeing your results. Should be amazing.
On a side note once your colonies of fungi are established some species with make avail the Rock Phosphate as Calcium Phosphate thru the symbiotic carb exchange. The fungi produce oxalitic acid that makes the phos not only avail but transports it to the roots in exchange for the carbs produced.
I've found in containers that by the time I reach heavy flowering my colonies are well established.