How much CO2 do you use?

meangreengrowinmachine

Well-Known Member
for people that use CO2 supplementation... how much do you go through and in what amount of space? What do you have your settings on the regulator at? 1200 target and 100 zone is what I am at right now... is it normal for the meter to go all the way upwards of 2000 when it is running? any and all input is great thanks!
 

nxsov180db

Well-Known Member
for people that use CO2 supplementation... how much do you go through and in what amount of space? What do you have your settings on the regulator at? 1200 target and 100 zone is what I am at right now... is it normal for the meter to go all the way upwards of 2000 when it is running? any and all input is great thanks!
Turn the flow down on your regulator if it's going all the way up to 2000. Sounds like your setup is adding co2 too fast, so once it shuts off at 1200 or 1300 the actual concentration is much higher. It takes a little bit for the controller to read the co2 changes so eventually the display climbs up and up in your case to 2000.
 

DoubleAtotheRON

Well-Known Member
....and I will add this. In a sealed up room, If Ihad it set at 1200ppm and a 100 deadband like you, I brought it 3-4 people to help trim up/lollippop the inventory, I did notice that the meter would read upwards of ~2300ppm due to us exhaling. Humans exhale 30,000-50,000 ppm with every exhale of breath.
 

meangreengrowinmachine

Well-Known Member
Turn the flow down on your regulator if it's going all the way up to 2000. Sounds like your setup is adding co2 too fast, so once it shuts off at 1200 or 1300 the actual concentration is much higher. It takes a little bit for the controller to read the co2 changes so eventually the display climbs up and up in your case to 2000.
yeah I thought that might be the case so I tried to turn it BARELY on, hoping that helps. thanks!
 

meangreengrowinmachine

Well-Known Member
....and I will add this. In a sealed up room, If Ihad it set at 1200ppm and a 100 deadband like you, I brought it 3-4 people to help trim up/lollippop the inventory, I did notice that the meter would read upwards of ~2300ppm due to us exhaling. Humans exhale 30,000-50,000 ppm with every exhale of breath.
30 to 50k!? wow thats a LOT! good to know thanks! I think I need much better "sealing" also for my room.
 

meangreengrowinmachine

Well-Known Member
Turn the flow down on your regulator if it's going all the way up to 2000. Sounds like your setup is adding co2 too fast, so once it shuts off at 1200 or 1300 the actual concentration is much higher. It takes a little bit for the controller to read the co2 changes so eventually the display climbs up and up in your case to 2000.
ooh maybe you mean there is a dial or something on the regulator itself.. I will have to check this!
 

xox

Well-Known Member
ive been running my room at 1500 parts per million with 1200 ppfd at the canopy at the peak of flower. without co2 enrichment the daily avg is 800 parts per million at 1000 ppfd at the canopy. with the added co2 and increased light i see about 25-30% more weight. as far as amount of co2 i dont use a tank. i use a natural gas co2 generator. co2 tanks are really heavy to move around.
 

meangreengrowinmachine

Well-Known Member
ive been running my room at 1500 parts per million with 1200 ppfd at the canopy at the peak of flower. without co2 enrichment the daily avg is 800 parts per million at 1000 ppfd at the canopy. with the added co2 and increased light i see about 25-30% more weight. as far as amount of co2 i dont use a tank. i use a natural gas co2 generator. co2 tanks are really heavy to move around.
Yeah I have a 10 lb tank I just got hoping it can last me at least 2 weeks and I don't have to go up a size. Filling the tanks is super cheap (less then $20) but buying them is NOT this new 10 lb I got cost me $189 a 20 lb is $209. I should have just got the larger one but I wasn't prepared for that high of a cost. Hopefully I can get it dialed in. If I were to get a generator I am on propane for all my gas needs in my home anyway so then I would just be getting tanks of that, so just seemed like an extra step lol
 
Is CO2 really the best form of carbon to add to the system? Why can't you just like make calcium citrate or something.


Humic acid is C187H186O89N9S1. That's alot of carbon.


You're homework for tonight:

Count the carbon contribution of every element in your nutrient line. You don't need earthworms and dream catchers to grow organic..
 

meangreengrowinmachine

Well-Known Member
Is CO2 really the best form of carbon to add to the system? Why can't you just like make calcium citrate or something.


Humic acid is C187H186O89N9S1. That's alot of carbon.


You're homework for tonight:

Count the carbon contribution of every element in your nutrient line. You don't need earthworms and dream catchers to grow organic..
I am not sure what you mean, you are saying that a carbon input in a nutrient is the same as c02 taken in by the plant??? I think many folks would disagree with that assessment also the co2 itself is not expensive just the start up costs (which I have already paid so no worries there) I do use worms but not sure what a dream catcher would do but you do you man!
 

xox

Well-Known Member
shit man that much for a 20lb tank i probably paid that amount for my 2 burner generator, albeit i still had to pay a couple hundred after that to get my gas line connected to it with its own shutoff valve all and all whole setup i think cost me around 450? its been a while since i thought about it. i can only run it when its warm enough for my mini splits condensor to run. totally worth it tho should see an increase in weight of 25%. co2 is kinda like driving a fast car gota be able to keep up if your using co2 then to take advantage you have to be able to provide the additional light they can absorb in that environment and if your providing more light all things being equal they will need more nutrients as well to get those results when harvest time comes.
 

meangreengrowinmachine

Well-Known Member
Ah ha! Duh mcfly .. user error... the valve on the regulator was open WAY too much! I got it to go to the max of 1385. So I closed it even a little more. Now hopefully this tank should last now that I'm not just open blasting the shit into there up to like 2500 ... oops! Some pics of the ladies for your thanks! This is Double Yhamba.
 

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meangreengrowinmachine

Well-Known Member
Turn the flow down on your regulator if it's going all the way up to 2000. Sounds like your setup is adding co2 too fast, so once it shuts off at 1200 or 1300 the actual concentration is much higher. It takes a little bit for the controller to read the co2 changes so eventually the display climbs up and up in your case to 2000.
Thank you! This helped a ton!
 

Drop That Sound

Well-Known Member
Is CO2 really the best form of carbon to add to the system? Why can't you just like make calcium citrate or something.


Humic acid is C187H186O89N9S1. That's alot of carbon.


You're homework for tonight:

Count the carbon contribution of every element in your nutrient line. You don't need earthworms and dream catchers to grow organic..
Calcium citrate is actually man made from a toxic genetically modified black mold strain, BTW. They trick you into thinking its some natural citrus product with colorful fruity labels. Not sure how you would make it, but sounds kinda fun!
 

Drop That Sound

Well-Known Member
Well, 99% of citric acid used today is made that way, by feeding sugars to the mold strains, probably since the 1920s.. Afaik anyway. They even label so many of the food specific products (probably the same ones in your cupboards right now) as non-gmo, and slap lemon & oranges on the package.

For sure, its in everything!

Calcium citrate is made directly from citric acid salts right? Even the dietary supplements..? I was under the assumption it too is synthesized the same way considering how most citric acid is made. I could be wrong.. and they only use real citrus. For some reason I doubt that its natural either though..
 
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