question about co2

I read from some of the websites that co2 helps the plants grow faster. How can i get a co2 that is affordable?

how much sugar, yeast, and water would be needed to raise co2 level in a closet 2X4X6 FOR CO2 just mix sugar + yeast + water but does anyone ever tried to make homemade wine for the CO2 made from the yeast eating the sugar that forms alcohol and the by product IS CO2?

Sure you can just add your favorite fruit to the mix ...kill two birds with one stone......1 gal. container 1 1/2 cups sugar 2 tbs yeast....

i dont think co2 helps that much in growth for plants. I used baking soda and vinegar mix for about 2 weeks and without for 2 weeks, no significant difference in growth

xmegademonx said:

I read from some of the websites that co2 helps the plants grow faster. How can i get a co2 that is affordable?

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First:
Maximize Light

Second:
Maximize Root Effecienticy - hydroponics, ect...

Third:
Co2

if you have not maximized the light and roots the Co2 is useless.

Co2 is expencive, but you may be able to find a used tank off craigs list, a welding tank or soda tank will do. A welding supply house will provide you with Co2.

Mate you got to have all other variables nearly perfect in order for the plant to be able to use the additional co2 provided. Just do a search on the net, there is plenty of info
Your growroom needs to be sealed (or nearly) and forget about the sugar and yeast thing, at least if you want to see a difference in your plants.

Good luck,
Unity

I'ts working for me.....

autotek500 said:

I'ts working for me.....

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That's awsome Auto You are maintaining co2 monitored right?! Or are you just guessing how much is in there?

Unity

No I don't have a fancy co2 monitor.......but I can tell an improvement since I started using it so what does it it matter ,?? its not hurting...and yeah im just guessing read the bottom of my post..........

autotek500 said:

No I don't have a fancy co2 monitor.......but I can tell an improvement since I started using it so what does it it matter ,?? its not hurting...and yeah im just guessing read the bottom of my post..........

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lol, cool, works for me

Unity

I use a 20lb bottle with a monitor and contoller. I keep my 7x8 closet at 1500 PPM. I use about 3 bottles a month. It costs $17 for a refill at the local welding shop.

My lights are vented and my room is sealed. I keep my room temps at 85 degrees to increase the plants metabolism. I run a three week perpetual harvest. My harvest went from 12oz. to over 16oz.

CO2 won't do you any good unless you have lots of light. You also are better off with some sort of hydro system like my design.
https://www.rollitup.org/hydroponics-aeroponics/116859-harvest-pound-every-three-weeks.html

There is complete instructions, plans, photos, etc....
Build one of these first, then add CO2 later.

StinkBud said:

I use a 20lb bottle with a monitor and contoller. I keep my 7x8 closet at 1500 PPM. I use about 3 bottles a month. It costs $17 for a refill at the local welding shop.

My lights are vented and my room is sealed. I keep my room temps at 85 degrees to increase the plants metabolism. I run a three week perpetual harvest. My harvest went from 12oz. to over 16oz.

CO2 won't do you any good unless you have lots of light. You also are better off with some sort of hydro system like my design.
https://www.rollitup.org/hydroponics-aeroponics/116859-harvest-pound-every-three-weeks.html

There is complete instructions, plans, photos, etc....
Build one of these first, then add CO2 later.

Click to expand...

dam u crazy lol

StinkBud said:

I use a 20lb bottle with a monitor and contoller. I keep my 7x8 closet at 1500 PPM. I use about 3 bottles a month. It costs $17 for a refill at the local welding shop.

My lights are vented and my room is sealed. I keep my room temps at 85 degrees to increase the plants metabolism. I run a three week perpetual harvest. My harvest went from 12oz. to over 16oz.

CO2 won't do you any good unless you have lots of light. You also are better off with some sort of hydro system like my design.
https://www.rollitup.org/hydroponics-aeroponics/116859-harvest-pound-every-three-weeks.html

There is complete instructions, plans, photos, etc....
Build one of these first, then add CO2 later.

Click to expand...

Do you use math to calculate how much you need or do you have a fancy $1000 controller to measure the Co2?

I just set up a fairly cheep setup, I am not sure if it is doing anything. I have a mig welder I am not using and the welding shop let me trade the tank for a Co2 tank, so that was free. Then I got a $60 aquarium controller and a timer I had laying around. Then I took the tank and left it on for 15min in to a garbage bag to calculate how many cubic feet per hour it releases. Then I did some sloppy guesstimate math and its running now. I have no idea if or how much its helping. My guess is it is, hard to be sure.

has anybody tried oxygen enrichment for the roots?

trichomemonger said:

has anybody tried oxygen enrichment for the roots?

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I have been thinking about just that. I have 2 unused oxygen tanks available to me. I had not figured out the best way, I am not sure if I should do it just like carbonating water in to some pressurized chamber first. The other idea I had was to create an aero system by using the high pressure to blast the watter every 5 minutes, making it splash on the roots. Another idea would be in a ebb-flow system, just before the flood drain cycle the room would fill with o2 then in the drain it would get sucked in to the roots then the fan would suck it out of the room and inject co2.

How would you think the best way to use the o2 would be? Right now I would rather a controlled small experiment on1 plant as I do not want to risk my harvest.

I am running two Fearless Gardens "4x8" (though they're more like 3.5x7ish) AirTable Pro Ebb and Flow trays with 15 plants in each. I am just beginning to harvest the first tray; this is my first time w/ the ebb and flows. But we have a CAP Co2 controller box, which controls temp and humidity, and a Co2 monitor which is mounted about plant height, and is set to 1500ppm; the room is usually between 1250-1500ppm.

One problem I ran into... the humidity was rising, since I live in Oregon and it rains a lot... so the damned controller box wanted to kick the exhaust fan on all the time because it was too humid. Therefore, the CO2 (which is turned off by the controller box when the exhaust fan is on) never got replenished, because the fan was always on. My grow partner and I invested in a roll-around air conditioner for the dehumidifier function.... I ran the continuous drain hose for it into one of the ebb and flow trays, and problem solved. The Co2 is always at a perfect level, as is the temperature and the humidity.

We keep the temp between 69-73, which seems to help keep the mites down, humidity is between 30-50%, which keeps mold issues completely at bay.

I found that during veg, with the Co2, our girls really took off like a rocket - about a week's worth of growth in 3-4 days. I can definitely say they respond well to Co2 in veg, but I'm not sure whether the nutrients I'm using gave me the growth and girth of the buds in bloom, or if it's the Co2.

I have heard that having Co2 on in the last 3 weeks of flower also makes the THC less potent, so I shut it off. Has anyone else heard anything like this?

i dont think co2 can make the thc "less potent"... i dont use co2 yet, but i would imagine the last few weeks of flower is when you would want it the most..

bigt8r said:

I am running two Fearless Gardens "4x8" (though they're more like 3.5x7ish) AirTable Pro Ebb and Flow trays with 15 plants in each. I am just beginning to harvest the first tray; this is my first time w/ the ebb and flows. But we have a CAP Co2 controller box, which controls temp and humidity, and a Co2 monitor which is mounted about plant height,

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I am jellos. I am guesti-math-ing my Co2. I also have this mess of timers and power cords. A controller would be really the thing for me. But my guess is you spent a couple grand for that stuff, no. Any tips for me if I may be buying a controler in the next 6 monts.

bigt8r said:

One problem I ran into... the humidity was rising, since I live in Oregon and it rains a lot...

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I am about 100 miles north of you, humidity and rain are constant for me.

bigt8r said:

so the damned controller box wanted to kick the exhaust fan on all the time because it was too humid. Therefore, the CO2 (which is turned off by the controller box when the exhaust fan is on) never got replenished, because the fan was always on. My grow partner and I invested in a roll-around air conditioner for the dehumidifier function.... I ran the continuous drain hose for it into one of the ebb and flow trays, and problem solved. The Co2 is always at a perfect level, as is the temperature and the humidity.

We keep the temp between 69-73, which seems to help keep the mites down, humidity is between 30-50%, which keeps mold issues completely at bay

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So I pretty much live in constant fear of mites (never had them) and mold. That setup sounds amazing. I was thinking a small window AC unit would be the most economical way of cooling and dehumidifing. I got this cheep dehumidifier off craigs list for $40 but it gets way to hot to use int the grow room. Well I harvest soon, for now I guess I will just keep spraying sulfer on a CFL for mold and poisening the perimiter for mites.

bigt8r said:

I have heard that having Co2 on in the last 3 weeks of flower also makes the THC less potent, so I shut it off. Has anyone else heard anything like this?

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I would really like to know more about this, maybe I should turn off my Co2. Maybe it makes plants grow more green material and the same amount of TCH, making for less potent buds? Where did you hear about this?

curious george... you shouldnt have to spend a grand on a co2 controller....

I am about to hook one up in my room, but i'm going about it a slightly different way...

I am using a PLC, which runs my whole system... i spent a few hundred bucks on it, but it replaces all of the timers and controllers... and you write the program that runs on it yourself... the PLC controller is about $189.

a solid state, self-calibrating co2 sensor from 0-2000ppm can be hooked up to it to read exactly how much co2 is in the air... this is also about $189

then you need a co2 tank, with a pressure regulator (every soda fountain has one), and a solenoid... the solenoid is a valve that opens when the PLC tells it to, usually with some DC voltage... you should be able to get this setup for under $200... the regulator solenoid are about $50 each, but you can find them for less... and tanks are everywhere, and should be able to be found on the cheap. You would need this part no matter what co2 controller you went with.

you can then program the plc to:

at any time interval, stop the exhaust fan, and pop open the co2 solenoid until it sees the co2 ppm hit 1500... pause for 15 minutes, or until temps reach 90 degrees, then resume normal operation (closed solenoid, exhaust fan on)

i wrote about what mine does in a little more detail in this thread: https://www.rollitup.org/grow-room-design-setup/137251-anyone-here-controlling-your-grow.html

if you had to buy all the shit JUST to do co2, it would be under a grand, but you would have the added benefit of being able to control your grow lights, water pumps, exhaust fans, and whatever else you want with it. You can even add touch screen controls to it... it can monitor temps, and turn everything off if they are over a point you specify, it can watch to see if buttons are pushed, or switches are open (float switch, door switch), you can really make it do anything - its a little more technical than the plug and play version, but it can do anything

autotek500 said:

I'ts working for me.....

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Yeast? Or vinegar? If so, or even a tank, how do you know it working for ya? Got 2 rooms going with identical set ups other then the CO2? (also using clones all from the same mother?) Otherwise, the results are tainted and speculative.