i gotta say diversity is better of course but not an absolute. homemade ewc is potent but gentle. i’ve never tried it but i should do a side by side with just my ewc and coco mix versus a diverse mix or bagged soil. having said that i feed plant matter to my worms. aloe, spirulina, stinging nettles, feed oats, wheat bran etc in small amounts, give them a lot of coffee to compost, fruit peels etc. i add scorcia dust to the bin, eggshells and every bit of cannabis i’m not using after harvest. leaves stems larf they all get composted.
all the stuff contained in like basalt, azomite and rock dust etc. are already accumulated in these plants i’m composting in the bin. they’re in a plant available form on top of that. like azomite can contain 70+ minerals but does cannabis even need all those minerals. besides, things like basalt azomite etc. they’ve been here for millions of years right, they havent decomposed or whatever during that timespan, so they’re not super plant available even if in dust form. i dont see this a drawback tho, just something i wanted to point out. maybe its better that it can slowly leach minerals over a decade.
having said that composting healthy plants in a worm bin can and will add any minerals and nutrients you need to grow a healthy plant. i see people building soils with 30-35 ingredients. thats madness imo. you need a good base substrate, rich ewc, some complete “fertilizer” like a balanced bat guano and that can grow healthy plants easily. people just complicate stuff for themselves imo.
i do like the ingredients you’re using dont get me wrong. and there is nothing wrong with diversity, i do the same thing but in my worm bin. then the ewc is just the tits. storebought ewc is a different story of course.