what do you do for CO2?

medical/420

Active Member
ok, i am kinda at a stand still here, the question is to inject Co2 or to vent the room and exchange the air every 5-10 minites.

how do you guys/gals let your plants breath? vent the room or inject co2.

I have seen what lack of co2 does to plants (or should say what it DOESN'T do)


I have a aircooled 600 watt Hid on a light rail , 5x7 room, 6 plants , super soil w/added nutes
 

budsMI

Well-Known Member
I vent my room but just bought a CO2 booster bucket.. Just wanna see if it helps.. I'm happy with what I'm getting now but curiosity got the best of me!
 

Trichyn9ne

Well-Known Member
I vent the room as well. I'm happy with my results without the added CO2. I do like to chill with my girls alot though!!
 

HeyWood Jablowme

New Member
adding c02 to a sealed room has many benefits, no smell leakage, less fans to run, if you maintain a good steady level of c02, the plant will grow faster and buds will be bigger. The upfront cost to add is probably more if that is a concern. you would have to compare the cost of fans/ducts,timers vs c02 equipment
 

kindfarms420

Active Member
i have a completly sealed rooms with mini split a/c i use 50lb co2 tanks from airgas its only 23 bucks to refill 80 dollars to rent a tank for a year because they dont sell the 50lb tanks..co2 definatly works if its set up correctly

if your not gonna use co2 have the air exchanging at all times
 

bob harris

Well-Known Member
I'm sealed room, co2 controller and tank. Co2 helps, but really only shows great results when everything else (temp, light, food, humidity) is dialed in too
 

medical/420

Active Member
I'm sealed room, co2 controller and tank. Co2 helps, but really only shows great results when everything else (temp, light, food, humidity) is dialed in too
Plants always need Co2, if it is from the air or a tank, I am building my room and in the designs it ether needs to be SEALED or VENTED, It is sealed right now, but am thinking of venting it.


My problem is that there is THOUSANDS of ways of doing things that work perfectly fine for indoor gardening . but you can't do them all... i have decided on 600 watt aircooled light on a light mover (I think i made the right chocie there, brighter than a 400 and uses less power than a 1000 watter. Aircooled hood (takes my excess heat out of the room) And a light mover to spread the light and move the shadows. white walls and floors, Organic nutes for nice flavor.

Co2: easyer to control and mantain the temp/ humidity plants can take what they need.

no Co2 & venting: harder to contral envirment if u are pulling outside air (outside air varies from 0 - 100 degrees, and from 35-80% humidty) so having a CONTOLED envirerment is harder, and if the plants are taking up more co2 out of the air than fresh air can supply whille stilll controling the temp and humity.
 

bmf725

Well-Known Member
I have been growing for the past few years with a vented grow room. If you decide on going vented your going to need to run an exhaust fan 27/7/365. you can buy speed controllers to control the temps and humidity. but don't think your going to get by venting the room every 10-15 mins this will cause humidity and temp spikes.
 

Beagle

Well-Known Member
I bought a 50LB CO2 tank full for $127 Pluss the regulator for $?.
I use co2 injection. The tank releases for 15min while my exhaust is shut off, then 15min more of the exhaust being off, then it kicks back on.

My grow is small, so 1 50LB tank lasts me 2 cycles. It's only $26 to have it refilled.
 

Pimpernickel

Well-Known Member
I use a Green Air CD-36, natural gas. My guesstimate is ~$100/month . I modified it with a stove pipe to pull some extra heat it generates out of the room, I had a picture of it but all my uploads are gone for some reason.
 

FatMarty

Well-Known Member
I just leave a small vent fan turned on 24/7 for exhaust from each room along with an oscillating fan 24/7 in bloom room.
The only 'problem' with this is input temp variance; but it never seems to dip below 63*F or rise above 78*F during lights off.

I'm pretty sure I have enough lumens to use Co2; but that seems like a lot of hassle to run.
I understand for quantity it makes a difference; but I don't do quantity.
If I did I wouldn't have built my grow rooms where I did.
My 'soilless straining' room immediately outside my grow rooms is three times the size of my other two rooms put together.:lol:
Anyone who sees my setup asks, "Why didn't you put the bloom room out here?
It's all part of my locked area; so it's a valid question.

The answer of course is that I know me too well: if I have three times the space I end up growing three times the plants.
My little grow rooms keep me honest, and legal.;-)
You should see my soilless straining operation - it's top notch. lol
 

abe supercro

Well-Known Member
Marty- what do you mean by soiless-straining?


I just leave a small vent fan turned on 24/7 for exhaust from each room along with an oscillating fan 24/7 in bloom room.
The only 'problem' with this is input temp variance; but it never seems to dip below 63*F or rise above 78*F during lights off.

I'm pretty sure I have enough lumens to use Co2; but that seems like a lot of hassle to run.
I understand for quantity it makes a difference; but I don't do quantity.
If I did I wouldn't have built my grow rooms where I did.
My 'soilless straining' room immediately outside my grow rooms is three times the size of my other two rooms put together.:lol:
Anyone who sees my setup asks, "Why didn't you put the bloom room out here?
It's all part of my locked area; so it's a valid question.

The answer of course is that I know me too well: if I have three times the space I end up growing three times the plants.
My little grow rooms keep me honest, and legal.;-)
You should see my soilless straining operation - it's top notch. lol
 

bigv1976

Well-Known Member
Co2 is a waste of time and money if you dont have your set-up dialed in for it. For the average grower the ambient levels of Co2 in the air we breathe is plent sufficient enough for plants to thrive.
 
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