Got rid of the substrate and switched to paper towels. Added more objects to clutter up the environment (including a paper towel tube... of all things).

I had to clean with a chemical. No bleach in the house or anything other than just water. I watered the cleaner out and used very little of it, then used water to rinse off the cleaner (it was scented... so I made double sure I couldn't smell anything.) and so far no signs of them.


Herp Derp