$250 will set you up with a tank and regulator, and a simple timer to control release.
It's the safest and most efficient way to go about adding CO2. My feeling on CO2 is this:
Get your other variables squared away before even considering it.
When it is time to supplement CO2, don't bother doing it half-assed. The yeast method works tolerably well but stinks to high heavens. Candles are not practical at all- dangerous and seriously the amount of carbon in the paraffin isn't really all that awesome, I mean, it is super lots of carbon by % of mass, but not much mass, you know? plus you are adding heat.
foxysox Reviewed by foxysox on . CO2 so what the simplest and cheapest way to provide co2 for a growroom?i expect the air around here is 500 to 600 ppm since i am right on a busy main road near a town centre in a city...last time i tested a different grow room in flower i still got a decent 400 ppm and all that was exhausting i ntheir was a decent sized air pump getting rid of air into the attic and it was only a small room packed full of blueberry.... what about this sugar/yeast/water idea? what about burning candles in the Rating: 5