c02

Co2 is amazing when the ppm is perfect!!! Really does make all the difffernce

i use the 2 liter bottle with yeast in a grow box and it has increased my groth rate the tank is best with a regulator but as you said $150 a pop is kind of spendy

it's about $200/pop to set up, but thereafter it ought to be less than $30/crop for me to run. The retun looks like it will be worth it.

And yes, a meter is the only way to tell how much you're getting into the atmosphere -- or you could put the neighbor's cat in there and see when it dies. But what help is knowing if you can't regulate it? The logic of this approach escapes me, even after trying it . . .

at the price of $30 bucks a crop it would worth it just because its easy and no mess and the yeast smells

Quote:

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Originally Posted by rodekyll

1500 ppm, 5000ppm or 25000ppm -- how do you know, using yeast, a coleman lamp, or soda? There is no formula for these, and environmental issues such as air leaks and temperature would render a formula useless anyway. You could be completely out of the effective range with these methods, making your effort a total waste of time and money. You could also be damaging the plants. You are completely out of control. There's no way to tell without a monitor, and no way to start, limit, or stop the flow without a regulator.

Any way you look at it, the bottled co2 is the way to go.

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How do I know? I do; I mean it's been researched and reported many times. Written in grow journals and books for many years. I have several controllers my self and do my own research but when people with PhD at the end of their name tell me so I have a tendency to believe them. Don't be so arrogant in your replies you are wrong as much as you are right. (I'm trying to be nice here).
I agree bottle CO² is great and having a controller is wonderful and controlling the environment is what I preach here everyday. But CO² is one of those things where even a little is better then nothing. Hell 99% of the people can't produce enough to do any harm anyway. Controlling CO² is the way to go but that does not mean if you can't afford the whole setup you should not do something.

There are many formulas around, hell even I have posted several of them here myself for people. Even though I don't need to use them anymore.

You can use math to caculate the amount of CO² build up you need.
http://www.hydroponics.net/learn/co2_calculator.asp
They have a nice calculator you may find helpful.

Normal air has about 300 ppm on average so if you produce 500 ppm then your plants are receiving 800 ppm of CO² and that's better then nothing you must admit that fact.

It's not a total waste of time and money now is it? The only real waste is not to try and not willing to learn don't you think?

It's a hobby and playing is half the fun.:dance:

Totally agree Zandor!
And even a little bit of CO2 is alot better then none.

I agree even a little co2 is better than none and
even a little try is better than none even if it dosnt work the first time or secand

Quote:

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Originally Posted by smokesalot

plant death at 5000 ppm
yes you can use short blasts from your tank until its gone several times a day use a fan to pick up the co2 and move it around or yoy could use the yeast,sugar,water method 2 liter bottle with air tight tube placed in cap & siliconed run the tube to a cup of water and put it in the water 3 in under put 2 cups sugar and 1/2 tsp BREWERS yeast fill with warm water and cap to hose wait 30 mins and shake bottle watch for bubbles in cup recipe can be multiplied for a larger area useing a 5 gallon bucket or a 35 gal trashcan depends on how much co2 you need

or

run a coleman lamp in your room this is cheep and easy but makes alot of heat
theres a million ways to get co2 for under $150 check the faqs

good luck

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cheers buddy i took ya advice and did a bottle co2 thingy

BusterUk, that little green feller in your garden looks seriously stoned ... or is he just getting too much CO2 ?? :stoned:

maybe a bit of both pmsl :)