Hi and welcome.

That’s awesome that you’re wanting to go bioactive. While it’s pretty easy to do, there are some aspects that are essential to doing it correctly. This is what I use as a guide.
https://www.chameleonforums.com/blogs/intro-to-bio-activity.2429/
The very first consideration is what will you be using to hold your substrate? If you have an all glass enclosure or other solid enclosed bottom, you will need to have a way to remove excess water from the bottom. The simplest way is to use a pvc pipe. Put some notches on the bottom where it will be in the drainage layer. Have it extend a bit above the top of your entire substrate and use a cap. When needing to be drained, simply remove the cap and however you will be doing it, remove the excess water. *If it were me, I’d be using a small wet vac. I use fabric root pouches sitting on top of ReptiBreeze substrate trays with my all screen enclosures and I’ve never had any need to remove excess.
Then you need the drainage layer. Clay balls are great, but you can also use lava rock if needed. I use medium weight landscape fabric generously to seperate the drainage layer from the substrate. Then I add my organic soil, chopped up fine sphagnum moss, a bit of washed play sand, a little coco coir and some horticultural charcoal* and a couple of handfuls of orchid bark. Mix it all well, put in my cleaned to the root plants, a nice layer of leaf litter, a chunk of cork bark for the isopods to hide under and lastly add my clean up crew of springtails and I use giant canyon isopods. Until things get better established, I will put some veggie scraps under the cork for the clean up crew.
*on a whim I tried regular charcoal (like is used for grilling, but not briquettes) and it works great. I break it up with a hammer into small pieces before using.
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