Important question !!

how important is co2??? ik its basically their oxygen but my homies tank ran out about a month into flowering and he finished his grow perfectly fine. it was a room of 24 plants with 12 1000's, the room had its own A/C unit, and an air vent sucking air in( about 6 inches in diameter). idk if that may have contributed to the supply of co2 in the room. anyways, if anybody has any knowledge on this topic please inform me.

Co2 makes plants grow faster, it does not make more potent plants, let's get that out of the way off the bat. Potency is genetic and you either grow a plant to its potential or you do not.

Second, Co2 is useful only in a perfectly dialed in room, usually using lots of automatic programming and timers to stop/close intakes and exhausts while flooding the room with gas. This presents obvious heat issues with 12,000 watts of power.

Is the Co2 your using on a timer? Are you shutting down vents and exhausts when the gas is flowing?

If you're around the room a lot I would say Co2 is not that important as far as buying and implementing. Sounds like more of a hassle to me, the exchange between humans and plants works wonders.

no its not on any timers. he would open the tank by hand once every morning for about 4 seconds when he had it. enough to where you cold see the thin gas reach every plant. soo wat i take from your answer is that its not necessary but it helps in growth. correct? and will they ever show any problems if they're never provided with it, like deficiencies?

That is a waste of money, sorry. Co2 has to reach a certain saturation level and then that saturation level has to remain around the plants for awhile. I'm not sure how long. This is why total control of your venting is critical. The way you're doing it is just venting co2 into the atmosphere.

Also for Co2 to be readily used by the plants stomata temperatures have to be at 90.

dolamic said:

If you're around the room a lot I would say Co2 is not that important as far as buying and implementing. Sounds like more of a hassle to me, the exchange between humans and plants works wonders.

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Yeah, I just spend a lot of time with my plants, breathing. I don't know if it helps them, but it makes me feel better!

bob jameson said:

Yeah, I just spend a lot of time with my plants, breathing. I don't know if it helps them, but it makes me feel better!

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It does, we trade air. Plants breathe in Co2 which is what we exhale, and we breathe in Oxygen which is what they exhale. That's why I talk to my plants, not because I'm delusional or lonely.

we figured that was good enough. i guess not. im going to have to look into that

juliosmokey said:

how important is co2??? ik its basically their oxygen but my homies tank ran out about a month into flowering and he finished his grow perfectly fine. it was a room of 24 plants with 12 1000's, the room had its own A/C unit, and an air vent sucking air in( about 6 inches in diameter). idk if that may have contributed to the supply of co2 in the room. anyways, if anybody has any knowledge on this topic please inform me.

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He is wasting his money, he should have the fans or a/c unit turned off when the co2 is pumping, But co2 is only as good as your setup, so if your temps and room isn't setup right your doing more hurting then helping. In the end it will increase your yields and also allow you to grow at higher temps and many other factors and if you don't spend a lot of money doing it and you don't waste it by blowing it outdoors it can be good, but remember you can't sit and breathe it in so be careful and have a meter to know what the PPM is at so you don't pass out.

so is it possible to have a successful grow without a co2 system?

juliosmokey said:

so is it possible to have a successful grow without a co2 system?

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Of course you can have a successful grow without added CO2. The only reason CO2 was "discovered" back in the late 70's is because of the growing (pun intended) popularity of growing indoors with HID lighting. Growers found they could not keep their temperatures down (plants stop breathing/growing when temps get above 87 or so) and the introduction of CO2 would allow cannabis to grow under higher temperatures. If you are just starting to grow, I would recommend not using CO2. Make your garden as simple as possible, then bring in other factors once you're confident you can handle to changes it will create in your room. Using CO2 could increase yields by up to 40% if done right, but if you've never done it before and don't have a control scenario to go by (documented room and plant reactions to normal situations) I would hold off. There's a great book that's not in print anymore and will run about a hundred bucks, but it really breaks down how and why CO2 is used. Doesn't even mention cannabis once, if I recall correctly, but a great reference nonetheless. http://www.amazon.com/CO2-Temperature-Humidity-Increase-Greenhouse/dp/0932551246/ref=sr_1_14?ie=UTF8&qid=1353180545&sr=8-14&keywords=CO2+temperature+and+humidity

thanks for clearing that up. im just going to keep it simple for now