Mold killer you could try

The Snark

Dumpster Fire of the Gods
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Weird Science <pat pend>.
Over at an associates house I came across about a 20 gallon fish tank. It was about as funky as it could get. Some dirt on the bottom, standing water at one end, partly filled with trash and probably a good sampling of all the common mold and fungi in the country growing in it including small white shrooms.

I set it out in the full sun where it wouldn't be messed with and covered it with a piece of sheet metal. That night I got to thinking this could be an interesting experiment.
So the next day I went back, put an oven thermometer inside, painted the sheet metal flat black and weighted it down so there weren't much air gaps.

A couple of days later in mid afternoon, partly cloudy all day, I went back. The thermometer read around 210-220F.
So it's sat out in the yard there for about 10 days. All visible molds, fungi and mildew are gone, along with the odor of anaerobes.

At a guess, if you've got full sunlight, some sheet metal, flat black spray paint and say, 3 days you can live without your tank, turn it into a solar oven. No need to disturb anything in the tank I don't think. Only certain rare and most likely harmless spores would be likely top survive. The heat would probably penetrate woody materials at least 1 inch, possibly 2 or 3.

As an afterthought, the water in the tank, maybe a half pint, probably assisted the heat penetration, evaporating during the middle of the day and condensing back to liquid at night, maintaining 100% humidity which aids atmospheric thermal conductivity.
 
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Marvinxox

Arachnoknight
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Aug 5, 2017
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158
Thats a interesting idea.
I once had mold in a small plastic-enclosure and I just put it into the microwave (without the spider of Course) and once I got it out and had it cool down, I added springtails, isopods (to eat the dead mold) and the spider and voila, the tank was completely mold-free for five months.
So I think a microwave could also do it for smaller enclosures, but having bigger enclosures bake themselves in the sun also is a great idea.
 

The Snark

Dumpster Fire of the Gods
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As long as everything in the enclosure is heated to 160F, about 72C, for around 20 minutes, all common molds and their spores should die. If using a microwave, and you have the room, use one of those hats that covers the food dish or enclosure, and add some water to the enclosure. Sort of a 1 PSI autoclave that would accelerate the kill time to 2-3 minutes. This would penetrate all permeable materials. Remember, without a medium like steam to convey the heat, microwave ovens don't heat uniformly.
 

The Snark

Dumpster Fire of the Gods
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Do they die, or just go dormant
With temp held above 160 F for five minutes with at least 50% humidity, the spores die.
The primary problem is thermal conductivity. Materials like wood are insulators and it will take longer periods of time for the heat to penetrate.
 
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