I agree, you need food to support them, for sure.
I did a quick google search on reproduction rate of bacteria and founds this "some bacteria like Escherichia coli can divide every 20 minutes. This means that in just 7 hours one bacterium can generate 2,097,152 bacteria " e coli - eww, a nasty choice for the example I admit, but I know but it reproduces just like all the others. were talking about taking one bacterium and making it into 2 million in just 7 hours time. Bacteria can reproduce FAST! I'd wager there may be more in my bucket than the pile as long as my timing is right.
I really wish I had a microscope so I could get a count on the microbes after a brew. I have been relying on the experience of others so far for that.
I have heard that bacteria come first, then fungal, and if you are lucky, maybe some of the bigger micro organisms too. (but they had to be present to begin with) I like to top up my brew with food throughout the brewing cycle. Adding molasses half way through to make sure they stay fed.
I like to brew for 24-36, sometimes as long as 48 hours. (Maybe it's too long, but it seems to be working great for me) the tea is so slippery and slimy I can literally feel the biofilm in it.
You are right that I don't know who what what type of bacteria I have in here. I'd wager that they are the same ones that were originally present, but maybe in different ratios now. But for the most part, we (humans) don't know what all the different microbes are for either and that's kind of the point. The rizosphere know's what it (the plant) wants, and it will foster for those types of microbes to become dominant in the rootzone via exudates. The plant is behind the steering wheel, not me. I just try to provide the best road possible for it to travel on.
Tim Wilson is the main dude I have learned about most of this from. He has a killer amount of info available on
http://microbeorganics.com/
All said and done, so far... I like the results of ditching bottled nutes and doing this instead. It's more work than paying to use a pre prepared bottle of nutes (that will actually kill the microbes in the soil and make the plant dependent on my nutrient regime). But I'm ok with that extra effort. I am passionate about this and the final product (my medicine) speaks for itself, imo.
I am 100% for improving on it any way I can.