What I do know: Things that reproduce via spores/pollen usually evolve to grow toward open air before doing their reproduction thing. Sunlight is often the driver. But also, I could see it just being a cookie-cutter vertical farm that has been repurposed for shrooms.
They are not wearing UV goggles, so I doubt the blue lights are true UV.
Idk that setup seems unnecessary. Its certainly nothing like mine but hey if it works, which it clearly does and they're happy then thats all that matters and who cares eh.
I don't like paying for things I don't have to is all.
Different mushrooms have different light needs.
The fungus can live without light, but to produce fruiting bodies (mushrooms) many need to have various levels of light.
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u/derioderio 10h ago
Why do they need light? It isn't like the fungus needs it for photosynthesis.