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#92
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Ok well my plants are about a week from flower (12/12) switch.. Im posting this thread for the reason being that I need to know when to Turn off my fans. I have a 6" vortex bringing fresh air in from the room the tent sits in. Then I have a 8" vortex that pushes air out. If i setup a propane burner outside of tent to make co2 when burning then what fans should i turn off/on at all when this propane burner kicks on?
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#93
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Quote:
Umm have you heard of global warming? CO2 is higher now than ever before in earth's history, due to man's burning of massive amounts of hydrocarbons...if anything, plants are better off now than ever in terms of available CO2 availability
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#94
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Dude, really? Do you seriously think that co2 levels have never been higher in the last 4.6 billion years? How do you think plants evolved to utilize 1500ppm in the atmosphere? For most of the earths history it has been much hotter and humid than it is now with much more co2 in the atmosphere than exists currently. Except for a period during the carboniferous period, co2 has been above 1000ppm; until about the end of the Cretaceous. It wasn't until Pangea began breaking up in the Jurassic Period that climates changed and Carbon dioxide began to decline from the then at average concentrations of about 1200 ppm to where it is today. The highest concentrations of co2 occurred (that is since the earth began to sustain life) during the Cambrian Period, nearly 7000 ppm!
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#99
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I've been lurking for some time now, just gathering info for a friend. I'll use my first post to help save you guys some money.
Wanna see something way cheaper than that control wizard thermostatic fan control? http://www.amazon.com/gp/product/B000E7BTFO Hope this helps someone. It's what I would use if I were growing
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| c02, calculator, calculate, long, run, co2, tank |
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