The application of beneficial microbes doesn’t have to be complicated, or involve any knowledge of brewing or chemistry. All you need is a quality microbial inoculants which are available at all grow stores and most nursery’s.
I always use three forms of inoculants. This SUPERCHARGES my medium with a vast array of microbial life. The first form is granular, used during transplanting. This product doesn’t need to be the expensive kind, the cheaper nursery store brands work fine for this application. Sprinkle 1tblsp. of powder at the bottom of each transplant hole.
Second is the soluble microbial inoculants. Adding it to every watering through mid flowering will build a robust colony of beneficial’s. Around the 5th week I usually take a break for a week, then re-inoculate every other week until flushing. I like to use a more expensive horticultural grade product for this application.
The trick to getting the most from your soluble microbial inoculants is to prepare it before use by aerating it. Add the soluble microbes as per package instructions to the appropriate amount of water. Then add a food source for the microbes. This can be any complex carbohydrate such as High Brix Molasses, Sucanat, or prepared products like Humboldt Honey ES. Aerating this preparation for even an hour or two before application will substantially increase your microbe colony. I like to wait 24-48hrs.
You should never try to brew microbe tea with chlorinated water. Chlorine is a bactericide which doesn’t discriminate between good and bad bacteria. You should always draw water days ahead of use to allow chlorine to evaporate, temperature to rise closer to room temperature, and allow time to be aerated.