I was reading through High Times Q&A with Jorge and he was discussing the importance of C02 supplementation and how you need to keep the ppm between 1200 and 1500. He mentioned that you can get a hand held C02 meter to test this. I nearly Sh@t my pants when I found one online for $1,700.00. Sooooo, my question is; just how important is supplementing C02? I just dont have that kind of money to run out and buy a meter.

Nm, will figure it out.

Well I just did and expirement. I always use co2 injection with my aero grows and this time I didnt and well huge difference not using is gonna add 2-3 weeks of time and buds without are a lot smaller.You can get a cheap co2 checker for under 20 bucks but its a use once then buy another attachment for like 8 bucks.Its a little syringe thing with a tester on the end.Co2 is the cats meow.

I have an 8 gallon vat with a hose coming off of it. I will try the water / yeast / sugar deal and see what happens. It has to be better than no substitution at all.

i put a decent sized piece of dry ice in a tupperware container and just let it give off CO2 every other time my plants are in the dark

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CO2 is absolutely CRUCIAL there is a formula, i cant remember off the top of my head, potzeimers, anyways the dimensions of the room, once you have the ppm of your room get a co2 regulator hook it up to your co2 welden bottle and set on timer...I don't go through all this crap amymore tho,,i just burn a torch(plumbers)(propane) three times a night for my room its 2minutes per time...4x8 7 foot with 50 plants.

So trust in god cause no one else gave you bud

jordan where do you get your dry ice from/how do you make it?

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fletch do you shut off your exaust when useing the co2 and doesnt the house then begin to smell.

Well i dont grow in my house I have what I call "places" lol safe spots if you will.My co2 kicks on for 2-3 minutes every hours and then 5 minutes before a new fil my vents suck air out and new air in making the exchange of air then I have dampers that close shut closing the room vents then the co2 timer kicks on. 1 20lb co2 tank lasts maybe 2 weeks at most

I use bottles of yeast and sugar and i notice that they like that.
I would assume that the proper co2 generators help a lot more than that though but my yeast and sugar costs 10 cents not 1700 dollars,for 1700 dollars i would want to see buds that were twice as big at least

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