co2 Newbie Needs Some Advice..

streets

streets

Well-Known Member
yo! so i figured it wouldn't hurt to use, i just dont think im doing it right. currently i have a 20lb co2 system without a ppm meter. so im pretty much eye balling it, if you would. my room is 17x15x7 so i figure if i run it at like 5 cfh for for 15 minutes every other 15 minutes i think it should be plenty of supplemental co2 in the room. i do not exhaust the room whats so ever because i have the lights hooked up to take in air outside and pull it thru all the lights and push the hot air directly back outside. is it really necessary to purchase a $700 ppm device?? the tank feels about half empty and ive been using it for 4 days now. when will i be able to actually see a difference in bud growth, from experience please!

thanks in advance!
 
streets

streets

Well-Known Member
well i did some readying, alot of people arent buying ppm meters, but imma try and space it out to 1 20lb tank a week for my room. hope this works out!
 
D

DrGreenThumbApprentice

Member
Hey man, I'm running a nice CO2 setup in my 12x10 room that has 8 foot walls and then the ceiling pitch so its a good size room, over 1000 cubic feet. I average a 20lbs tank every 4 days in flower and every 3 days in veg. I run an AC unit that vents outside and I keep my room at 73 degrees so my AC runs a lot. I am running 2 1000 watts blubs with outside air cooling them and being pushed right back outside, but the temp here is about 68 - 72 consistently and I run my lights at night so my room will set about 5 to 10 degrees hotter then the outside temp if I do not have my AC on. Long story short you plants need CO2 to grow better and for the photosynthesis to process everything into surges for good growth. PPM should be around 1250 to 1500. Anything over 2500 is toxic to plants and over 4000 is toxic to humans. It has been said that the proper amount of CO2 can increase you growth from 30 to 100 percent. Just an example I have some purple Kush going right now that had a two week veg, one week transistion, and today is there first day of flower. There are in 3 gallon soil bags and they are at three feet tall today when I measured them. I keep my CO2 at 1250 and I have grown with out CO2, but never got the results that I am getting right now. If you live in the city like I do the CO2 is naturally going to be around 300 PPM, but in the country you will be more like 200.
 
streets

streets

Well-Known Member
DrGreenThumbApprentice said:
Hey man, I'm running a nice CO2 setup in my 12x10 room that has 8 foot walls and then the ceiling pitch so its a good size room, over 1000 cubic feet. I average a 20lbs tank every 4 days in flower and every 3 days in veg. I run an AC unit that vents outside and I keep my room at 73 degrees so my AC runs a lot. I am running 2 1000 watts blubs with outside air cooling them and being pushed right back outside, but the temp here is about 68 - 72 consistently and I run my lights at night so my room will set about 5 to 10 degrees hotter then the outside temp if I do not have my AC on. Long story short you plants need CO2 to grow better and for the photosynthesis to process everything into surges for good growth. PPM should be around 1250 to 1500. Anything over 2500 is toxic to plants and over 4000 is toxic to humans. It has been said that the proper amount of CO2 can increase you growth from 30 to 100 percent. Just an example I have some purple Kush going right now that had a two week veg, one week transistion, and today is there first day of flower. There are in 3 gallon soil bags and they are at three feet tall today when I measured them. I keep my CO2 at 1250 and I have grown with out CO2, but never got the results that I am getting right now. If you live in the city like I do the CO2 is naturally going to be around 300 PPM, but in the country you will be more like 200.
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cool thanks, we are running similar setups in-terms of fixture exhaust and running times. im running 8 600 watt lights so my temps are around 83. i have central air that kicks on whenever the thermostat goes about 85. ive heard higher temps are good when using co2 though so i have been . i used my 20lb tank in 4 days without a ppm sensor, i need a bigger tank! would you say its completely worth the $? have YOU noticed a 30%-100% increase of yield?
 
dannyboy602

dannyboy602

Well-Known Member
You don't need a meter. It just makes you more sure about the actual numbers. I have a Coco meter from eBay and it was like 200 I think. Anything over ambient PPM is better than nothing.
 
streets

streets

Well-Known Member
dannyboy602 said:
You don't need a meter. It just makes you more sure about the actual numbers. I have a Coco meter from eBay and it was like 200 I think. Anything over ambient PPM is better than nothing.
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thats what i thought, but my flow meter is kinda jacked, as in i cant seem to find the little metal ball that says what the flow rate is!!! its gone! so im pretty much GUESSING the flow and the ppm... but i do agree any extra co2 is better than none.. but is too much a good thing? i mean i pumped out a 20lb tank in 3-4 days
 
dannyboy602

dannyboy602

Well-Known Member
If u can manage to get as high (no pun intended) as 10,000PPM toxicity will become a prob for u and ur plants. But I don't see that happening
 
CEAhaze

CEAhaze

Member
Clearly, you're already spending big with that large of a room so why not go all balls out. Yes, regulators comes w/chart and flow meter settings but remember as plants gets larger, they are going to eat more co2 which means feeding with higher ppm levels. So it's somewhat a guessing game. I'm not saying timers wouldn't work but with a 17x15x7 room, I want my sh!t dialed in as accurate as possible. I have a sentinel chhc-4 controller and this machine is better than any birthday present I ever had lol! Instead of filling up the room then stop till the timer turns the regulator on again, this machine maintains the room at 1500 ppm level. Make sure temp, humidity, feeding, day/night cycles, and leaks are also all under control and you will instantly witness enhanced growth. I have a 10x12x7 space and my 20lbs tank last about 5-8 days depending on the stage of my plant. Day temps are 82-87 and 60-70 humidity. Night temp is 75 w/60 humidity. My plants love these conditions in my room. You don't need to exactly follow but I'm giving you a basic idea since our grow rooms aren't identical. I'm not responding with my opinions, I actually did it.
 
303

303

Well-Known Member
I've learned when it comes to co2 enrichment unless you can afford it don't do it because it won't get that "30%" extra yield you think your going to get. You need to exhaust that spent co2, and without my cap ppm1 monitor there's no way I'd be between 1250-1500ppm on a huntch. You need to be exhausting (on a co2 atmosphere controller so your co2 isn't on while exhausting), at the minimum purchase a co2 atmosphere controller, and highly recommend using the cap ppm1 or the sentienl co2 controller. I'm willing to bet your way over or under on ppms. You'll just never know. Don't spend money on the 'cheaper' one on ebay for 200, get the legit shit that will last you and give you accurate results. You need to reconfigure your intake and exhaust, and if you want to clean the air scrubbing is the only way. Also how "sealed" is your environment. Co2 isn't one of those things you can just half ass, it has to be complete.
 
dannyboy602

dannyboy602

Well-Known Member
Plants use co2
They emit o2
You exhaust excess o2. Not excess co2
Coco is a reputable monitor...but if u wanna spend more be my guest
No offense intended. I'm here to learn.
Also do u know how hard it is to get up to 1500PPM? It's realllly hard.
 
CEAhaze

CEAhaze

Member
I don't even exhaust my room till lights off and my plants are not showing any stress. Also, it's not hard to pump 1500 ppm in a sealed room. Me and 2 of my buddies can pump 1500 ppm in 30 minutes before lights on. Instead of the tank filling up the room, it's only maintaining the room to the ppm I desire. That's why my tanks be lasting 7-8 days even when my plants are 6 ft tall. Also, I turn of my regulator 1 hour before lights off so it has enough time to absorb the co2. Once the lights off, 1500 ppm won't mean sh!t. Just another way to extend the life of your tanks. To some it might be a hassle, but I got nothing but time. A controller is more ideal and more accurate. Definitely must have a sealed room.
 
Dubbz0r

Dubbz0r

Well-Known Member
I have a 50lb tank setup outside my room that runs into the room. It's controlled by the Sentinel CHHC-4. Without opening the tank at all, the room stays between 500-800ppm. Granted, I am in there quite a bit which I'm sure has to do with it being so high but it's good enough for now. I plan to hold off on pumping the c02 until flower time. Once they get the flip to flower I'll bump the chhc-4 up to 2000ppm. It shouldn't be an issue with the chhc-4...the thing is beast, and the plants will love it.

The plant isn't capable of using 1500ppm most of it's time in veg anyway, so why waste the c02?
 
streets

streets

Well-Known Member
dannyboy602 said:
Plants use co2
They emit o2
You exhaust excess o2. Not excess co2
Coco is a reputable monitor...but if u wanna spend more be my guest
No offense intended. I'm here to learn.
Also do u know how hard it is to get up to 1500PPM? It's realllly hard.
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well i just got one of the most top of the line controllers, titan atlas 4. duel room co2 controller. i have it set to pop on at 1150 and turn off at 1400...l i have yet to get my room to 1500 even with it running the whole light cycle it only reachs 1456 and than goes down to around 1300. but the tank is running constantly, i need a better regulator one that will give more flow...

the controller also has tons of different setup functions and logs the highs and lows for the ppms on a 24 hour bases.
 
CEAhaze

CEAhaze

Member
Dubbz0r said:
I have a 50lb tank setup outside my room that runs into the room. It's controlled by the Sentinel CHHC-4. Without opening the tank at all, the room stays between 500-800ppm. Granted, I am in there quite a bit which I'm sure has to do with it being so high but it's good enough for now. I plan to hold off on pumping the c02 until flower time. Once they get the flip to flower I'll bump the chhc-4 up to 2000ppm. It shouldn't be an issue with the chhc-4...the thing is beast, and the plants will love it.

The plant isn't capable of using 1500ppm most of it's time in veg anyway, so why waste the c02?
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Waste co2? have you actually veg with 1500 ppm? High co2 level will boost up your plants metabolism which is why they can handle nutrients with high ppm which will increase their growth instantly meaning you're saving veg time. I don't understand why using co2 in veg is being overlook. Just because you have co2 in flowering doesnt mean your nugs will be donkey dingalings! You're veg have to be the sh!t so your flowering can be the sh!t too. You have consider other factors too like training and you're strain has to be a nugger. I have grown ferma frost, mango kush, and now super lemon haze and I threw the co2 level at 1500 ppm with 1200 ppm nutrients and kept increasing the nutrient ppm every other feeding and they grew like unemployment rate! And this is all happening within 2 weeks I transfer them in the room. I'm not dissing you but please research before you make claims and mislead others that are trying to learn.
 
streets

streets

Well-Known Member
CEAhaze said:
Waste co2? have you actually veg with 1500 ppm? High co2 level will boost up your plants metabolism which is why they can handle nutrients with high ppm which will increase their growth instantly meaning you're saving veg time. I don't understand why using co2 in veg is being overlook. Just because you have co2 in flowering doesnt mean your nugs will be donkey dingalings! You're veg have to be the sh!t so your flowering can be the sh!t too. You have consider other factors too like training and you're strain has to be a nugger. I have grown ferma frost, mango kush, and now super lemon haze and I threw the co2 level at 1500 ppm with 1200 ppm nutrients and kept increasing the nutrient ppm every other feeding and they grew like unemployment rate! And this is all happening within 2 weeks I transfer them in the room. I'm not dissing you but please research before you make claims and mislead others that are trying to learn.
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i sprouted a mango kush the other day, what do u think????
 
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