How much to setup and run the co2?
1500ppm might be a little high. Its not gonna hurt anything but anything past 1300ppm you reach a point of diminishing returns. keep your dead-end at around 200-300ppm or use fuzzy logic if your controller has it. You can run it up until the last 2 weeks. Some people cut it off sooner. Make sure that you are increase light intensity, grow room temp and nutrient strength. CO2 on its own doesn't do much. it basically makes it so your plant can handle more extreme levels of everything else which combined causes stronger growth.
Can you give me a link to the study that backs that up?
Yeah, it makes zero sense to do it in a small setup like OPs. Even if he gets everything else right, the increased yield will not offset the costs of CO2. Not everything is about making money though, it could just be a fun experiment for OP. That's how I roll, I like trying new/different things as I go and then keeping and perfecting the ones that increase my yields. To me its all a fun science experiment.
Hows that? If there's minimum of 1000ppm million and max ox 1500 hows that? Its just co2..
Youve been using it in the past?
If its not sealed than your gonna be losing CO2 rather quickly so you'll constantly be refilling bottles which costs $$$.
How will he lose it? Where will it go? And more importantly Why?
Cost of co2 dirt cheap?? I don't get the thinking. My Temps are 82f , humidity good, nutes all good. So it won't do any good? iam not buying the thinking..
Co2 don't cost chit... is that why??
Unsealed room allows escape. It's a gas. It gets out quite easily.
Plenty of information available on the web. I did quite a bit of reading on the subject before I added it to my grow. A lot of it is based on theories but there is some real science behind it as well. I don't have a specific scientific study on hand but this article touches on a few of my claims in my post. I had another good cannabis specific CO2 supplementation article saved on my old computer that I can't find right now. This one is from Ed Rosenthal who is a respected name in the cannabis world.
www.edrosenthal.com
What size bottle do you have and how much did you pay to refill? Without sealing your grow, that tank will be empty in a matter of days. I don't use bottled CO2, I use a natural gas generator so my CO2 is pretty close to dirt cheap but not cheap enough to where I'd want to run it in an unsealed grow.
You didnt answer the questions
