Great White really is a good product, but its more of a root innoculant and not a tea. I've used it and its especially good if used from the get go right at the start. Same idea, only using a product like
mykos or recharge or (my favorite) Microbe Blast. These are geared towards a microbe tea and would likely provide more benefit now since application is much easier. You just mix it up with plain water (no chlorine), aerate it to super saturate it with O2 for 8 - 12, no more than 24hrs and water it in. I'm 100% behind what you've said about microbes though. Usually I have
Great White handy but I ran out. I'll be getting more soon when I shift to indoor.
@Namder if you have any of these products handy. It's a good idea during next watering.
Edit: It's not magic fairy pixie dust ... an end all to all things. It won't bring dead plants back to life ... but it will help provide a healthy environment for the roots and boost its nutrition for sure. My plants look like they are on viagra after a dose of microbes. All leaves are happily absorbing as much light as they can.