Heat the soil to a high temperature (around 180°f) for a few hours to kill any trichoderma spores that may be present. Web sterilize the soil: Web it grows on decomposing organic matter.
Bioactive terrarium background
What is bioactive vivarium
Bioactive desert vivarium
How to Fix Mold in Terrariums (7 Easy Tips & Tricks) Terrarium Tribe
So, introducing a colony at the first sign of fuzz will do wonders to keep your terrarium healthy and happy.
In closed terrariums, springtails, and isopods break down organic matter, preventing mold problems.
This really is the best option on the list, as it works as both a solution and a deterrent.
