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Without a lot of information and well documented procedures it would be very difficult to concoct a compost tea that meets your specific needs in a complete way.
I would say beginners can definitely do this as a means to provide "supportive" nutrition, but that in general it will cost you more time and money than purchasing what is already commercially available.
-------------------- I am not a cannabis grower. I find the cannabis growers to be the most open to experimenting and sharing out of all of the different botany groups I enjoy. I frequently use the suggestions that I find to apply to own organic gardening and food production.
Actively Aerated Compost Tea's or AACT's are common amongst soil growers and some hydro growers to inoculate their medium with a highly populated and diverse slurry of bacteria, fungi, and protozoa. This usually involves small amounts of compost, manure, etc and plenty of aeration to achieve a high population of beneficial bacteria, fungi, and protozoa.
Some growers steep large amounts of manure, kelp, etc in water sometimes bubbling more to keep things from going anaerobic (growing bacteria that thrive in oxygen free / low oxygen environments) and these kind of teas provide more nutrition but aren't as rich in microbes.
If you want my personal opinion, you want a soil that's amended with kelp, worm castings, guano, mineral sources, mushroom compost, compost, etc that's left to compost for at least a couple-few weeks (months is better as nothing is lost so long as your soil isn't being rained on) and then you would want feed with a AACT to keep the soil rich with microbial activity.