Here is an ad that popped up on my computer this morning. I wonder if this is another way to generate CO2 for our plants? Granted it is aimed at hobbyists of another kind, but the idea is amusing, if nothing else, and you get the bonus of some good edible mushrooms! https://www.1000bulbs.com/product/1...BaseShopping&gclid=CLiDz-ODucsCFdKIfgodGBgI4g
