m0useanswered grow question 8 months ago 2nd great white, but its pricey and hard to source in Canada,
I've used voodoo juice and had nice results but its cost point for what it is, is not worth it to me.
Also used a product from MIIM called microbial mass with good results and its less pricey then others, not great in DWC style systems only soil/medium based.
Mykes is a brand that is sold aorund me, its ok, its like Dynomyco, but less money.
I've never noticed a massive difference between using and not using Dynomyco or mykes, was even in a dynomyco contests where you compare the two root balls at transplants, one with and one without the product. The same contest where someone won for not showing any root balls or transplants and that was the whole point of it. Broken system but outside of that, the products meh. better then nothing but only really effective in soil and high levels of fertilizer in the soil can stunt it or make it ineffective.
I have noticed a difference in roots "colour, size, amount of" when using voodoo juice or Microbial Mass, . Both are liquids you add into the water and soak in. Same thing could happen with aerated compost tea I bet, just farming good bacteria to outpace the bad ones in the medium. I've also used LAB's with good results as well. Made a diary on how to make you own LAB's :D
w/e you pick, confirm its spore count per gram, make shure its worth it, and ensure its not to pricy vs other options for less of the same thing.