I have recently acquired a L3 Ghost mantis and am keeping him in a jar until he gets big enough for my Exo Terra 8x8x12 vivarium. The substrate was purchased on Amazon, and I have had no problems with it. I got a stick from outside and baked it in the oven at 250 (degrees F) for a few hours before putting the stick in the jar. Yesterday when I woke up, I noticed a bunch of white, spiky, hair-like mold growing from the stick. I cleaned it with a wet tissue and bristle brush, but the next morning it was back. I have heard that spring-tails are a good option for eating mold on substrate, but will they also clean my stick? Also the Exo Terra vivarium has a glass door, and I imagine a spring-tail could slip through the crack. Would that be an issue or will they remain inside the enclosure? Any other options for keeping mold/fungus off the stick? Thanks.