Very good topic. I am wanting to speed up cleanup of my old pond. Have been researching various concoctions. Most say only "contains billions of bacteria and enzyme spores". Then there is a "super concentrated" type for 5x the money. Is there any regulation in labeling, ie type/names of bacteria/actual count per unit wt?
I dont see that the brewing process would be an exercise in futility, if it establishes the ideal conditions for quickly upping the count of bacteria. But, I doubt that supplying a container with 10 billion vs. 50 billion spores is a big cost of manufacturing difference.
Strictly conjecture on my part.