Raffael Hey there, after a few initial difficulties with the Guava, we can finally get started :)
The substrate consists of 70% soil & 30% peat, along with a homemade fertilizer mix of short and long-term fertilizers like alfalfa pellets, cow manure, bat guano, algae and fish meals & some rock powders.. also, I regularly boost it with bokashi juice and various homemade ferments & EM :) Additionally, there are about 2-300 compost worms, springtails, and white and other woodlice & some predatory mites & nematodes & the whole package, you know :D
It's only the second run in the new bed, so it's still getting settled in.
Current temperature: 24.5 degrees
Current humidity: 75%
VPD: 0.75
Unfortunately, there's already a small thrip infestation visible, but at this size, it can still be treated easily :) If not, the fungus gnat larvae might have to move in again.