I was wondering if carbonated water in a humidifier would work for a CO2 application.

I am currently using the sugar and yeast concoction.

any thoughts?

My next step would to go to dry ice.
I just want to think about it a bit though.

I have a limited space in my closet.

Only enough room for about 25 plants.

Only 25 plants...lol
I don't know if the humidifier would work, it couldn't hurt to try could it?

Next Idea.

The plants need co2 for photosynthesis during lights on.
The roots need o2 during dark.

Could one aireate soil with o2 for night cycle?

I don't know that either. I have a friend that uses an air pump and some hose for his plants but I don't notice a difference to be honest with you.

soil has millions of tiny pores in it (this is how it drains water) so the roots will have oxygen as long as you don't overwater.

i use yeast and sugar, in 5g jugs (big water jugs) and three of them will fill a 12x14x8 space. you can taste it, just like with the first sip of a soda. i use two bags of sugar (5lb) and three triple packets of bread machine yeast per jug. they last for about 8 weeks before you need to add more sugar, then they last another 8.

kp

For the amount of co2 you get in carbonated water makes it financially a huge loss. Your better off getting a co2 tank, it's not that expensive and you don't need to get the expensive celanoid system to run it, just a simple regulator. Hell I know someone who just got a simple tank for $20 and turned the knob to create a slight leak, worked very well. Welding supply stores often have them.

Yeast is also less expensive in the long run but some people make the mistake of not using dark containers, you will get much better co2 output if a minimal amount of light reaches the yeast mixture. It will also prevent nasty algae buildup.


My favorite by far is CO2 Boost. It's a bit more expensive then more home made systems but it lasts a hell of a lot longer (and thus ends up being cheaper) and gives much better results. I saw the best results with this over everything else.

CO2 Boost - All-natural CO2 Generators for the purpose of CO2 enrichment and air fertilzation

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How do you effectively use Co2 in a smaller room ( 2x4.5 ft footprint ) with the exhaust system running? Seems like it would suck the Co2 out before the plants could make use of it.

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Buds,Buds, and more Buds: Purps + White Russian

In a professional setup the vents would turn off and the CO2 would go on for certain periods of time during the day. In a small space without a tank system you can set a timer to do the same for the vents but watch the temp! I set mine to go on and off in one hour increments, just use a good heavy duty timer.

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As of right now I have 2 milk jugs with sugar water and yeast on a shelf above the plants.
I shake them and expel the co2 usually 2-3 times a day with the fans off and the door closed.

They have plastic tubes comming out of the lids to direct the co2.
Works pretty good I just would like something a bit more efficent.

it's a good idea, but the much greater humidity levels and opportunity for mold would outweigh any benefit.