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I'm still working out my CO₂ issues in order to grow oysters, but meanwhile I got a decent second flush of lion's mane.

Thanks to the new meter, it's now apparent that the CO₂ levels in my house are actually worse outside of the grow room, since that stays largely unoccupied with the door closed. Yesterday my son's room broke 2000 ppm while he was playing there. Regardless of its suitability for mushroom growth, that's not a healthy environment to live in for the next 7-8 months. I think I'm going to try putting together something like this to see if it can make a difference.

#mushrooms #lionsmane #co2 #ventilation #hvac #hrv #diy