co2

Jeffdogg

Well-Known Member
Both, however if your system isnt tuned that well its not gonna be much of a help. If the temps are kept around optimum range for growing it can very very beneficial. But if the temps get exceedingly hot its gonna be helping them breathe. When high temps arise it makes it hard for your plant to breathe which in turn hinders the growth and overall yield. How are the temps in your room?

If its too expensive for you to use it for both (which it shouldn't co2 is pretty cheap) then dont bother with a Co2 setup. try mixing some baking soda and vinegar and let it in your room a couple times a day to add some if you feel it needs it.
 

Jeffdogg

Well-Known Member
low 80's is acceptable, they really dont start to hinder until around 90°+

If you had to choose either flower or veg i would go with flower for sure. But not until about 2-3 weeks in unless you have enough to supply the whole cycle. What type of Co2 setup are your looking into Tiff?
 

Jeffdogg

Well-Known Member
Dug this up, interesting read :)

At some point in your marijuana growing career, you will have a desire to incorporate CO2 into your recipe. Chances are, that is why you are reading this article. I have grown marijuana for a long time, and I know first hand that there is a lot of junk information out there on the web in regards to marijuana plants and CO2. Below is some great information that I found on some of our partner sites that I wish I had when I first started growing marijuana:
By Dr. Who
Humans breathe in oxygen (O) and breathe out carbon dioxide (CO2). Plants do the reverse. They “breathe in” CO2 and “breathe out” oxygen (O). This is why plant life is an essential part of the worlds’ ecosystem. Without plants, CO2 levels would rise to intolerable levels. Plants use CO2 for growth. It is the essential building block for photosynthesis (along with light and water). Plants cannot grow without CO2. The current levels in the atmosphere are about 350 parts per million (PPM). It is theorized that millions of years ago, levels of CO2 were about 1,500 PPM. Throughout the years, plants have evolved in many ways–and in many ways have stayed the same. Knowing this can be advantageous for us all.
It seems that plants have not lost the ability to use up to 1,500 PPM of CO2. Plant growth can be accelerated by increasing the CO2 levels in your growing area. Conversely, CO2 levels below 250 PPM have a detrimental effect on your plants. If you have six plants growing in your closet, and there is no ventilation, your plants can use the CO2 in a few hours. They then stop growing. You must, at a minimum, provide fresh air for your plants every hour or so. An even better way is to provide supplemental CO2 for your plants by using either a CO2 generator or bottled CO2. Any of these solutions will keep your plants growing at optimal rates. It has been proven that you can increase your growth rates by up to 20 percent and size by up to 30 percent by providing supplemental CO2 at levels over 1,200 PPM. You should never go over 1,500 PPM, as this soon becomes toxic for the plants, and they tend to grow very stringy.
CO2 generators are simply specialized burners that burn either propane or natural gas to produce CO2. A byproduct of this process is water, in the form of humidity. When using a generator, it is a good idea to keep an eye on your humidity levels. CO2 generators are optimized to produce as little heat as possible, while producing as much CO2 as possible. They are normally rated in cubic feet per hour (CFH). A standard 10-foot-by-10-foot-by-8-foot room containing 350 PPM takes about 1 CFH to raise the levels to 1,500 PPM. The level will drop throughout the day, requiring smaller burns to keep the levels constant. A CO2 PPM controller works great for keeping your levels constant with a CO2 generator.
Bottled CO2 can be obtained at most hydroponic or welding stores. You need a regulator/flow meter to get the CO2 out of the bottle in a measured manner. You set the flow rate in CFH and set the regulator on a timer to bring your CO2 levels to the desired level. A few calculations will be needed to set your CO2 levels correctly. You can also use a CO2 PPM controller to maintain your levels.
Plants do not use CO2 at night. It is not necessary to supplement CO2 during your dark cycles (mushrooms are an exception). Properly used, supplemental CO2 will only help your crops if you have all of your other factors in line, such as using a good nutrient mixed at an appropriate strength, changing your nutrients to prevent nutrient deficiencies, having enough (and not too much light) and keeping your temperature and humidity are also plant limiting factors. Once you have dialed in all these, supplemental CO2 can help you gain the most return on your plant growth.
 

BeaverHuntr

Well-Known Member
I use co2 in flower only, I didnt notice a big enough difference to use it in veg. I only really started using it because the temps in my sealed room ( spare bedroom using Central AC ) would get up to 85 degrees with 2000W
 

~Dankster~420

Well-Known Member
I myself have been thinking about doing Co2. But when I seen the price for the set up's, I told myself, no thanks! But I have found somthing of interest and have been doing some reading on it. Don't really know if it would work, but its worth a try I guess! I found Co2 tablets for plants, and was thinking about either feeding them with a mixture, to see what would happen for shitz n giggles of course! But hey, if it works, then I guess that would be an alternative to the highly priced Co2 set up, huh? Well, anyways, take er easy. Happy 420 guys! Later.
Where would co2 be mpre.beneficial in bloom or veg???
 

~Dankster~420

Well-Known Member
I am using a tank with perforated hose lining the ceiling. On a 15 minute on/off schedule.
Oh!! I see... it should do GOOd then.. just watch those temps! That's a big thing with Co2 I've herd! I've seen some grows that Co2 had been used, and all I can say is "Holly Shitzz",lol! The buds where so cpmpact it was unreal! They looked like a monster, I would be afraid 2 smoke um! J/k.. :-P
 

Jeffdogg

Well-Known Member
I am using a tank with perforated hose lining the ceiling. On a 15 minute on/off schedule.
I always strung the hose around the plants. Co2 is heavy so it does "fall down" i guess you could say but it doesnt mean that on its way down it will mix with the air. Your leaves are the ones that breathes in the Co2, wouldn't you rather have it closer to the leaves for optimum intake while its transpiring the moisture?

Also there is also a cheap alternative to the expensive systems, check this link out and look at the boost buddy. Its $35 and good for small rooms. Co2 boost buckets have been on the scene for a lil while now. Not to many ppl know about them though. They work just as well as the expensive systems.
 

BeaverHuntr

Well-Known Member
I always strung the hose around the plants. Co2 is heavy so it does "fall down" i guess you could say but it doesnt mean that on its way down it will mix with the air. Your leaves are the ones that breathes in the Co2, wouldn't you rather have it closer to the leaves for optimum intake while its transpiring the moisture?

Also there is also a cheap alternative to the expensive systems, check this link out and look at the boost buddy. Its $35 and good for small rooms. Co2 boost buckets have been on the scene for a lil while now. Not to many ppl know about them though. They work just as well as the expensive systems.
Those buckets suck and so do the co2 bags they dont give you a constant output of 1500PPM. The only right way is to either go co2 tank or co2 generator.
 

Jeffdogg

Well-Known Member
I haven't had experience just have had ppl talk about them and recommend them.I had an old tank in the shed and bought a regulator off ebay for $100 so i never messed with em. But thx I wont be suggesting those anymore :-P
 

Tiffay2180

Well-Known Member
Honestly when i added it i thought i would have this crazy difference but i didnt really have one. Now it coypd be because the lines r to far away and because i do have an exhaust that feeds the light and filter that is going when its on
 

BeaverHuntr

Well-Known Member
Honestly when i added it i thought i would have this crazy difference but i didnt really have one. Now it coypd be because the lines r to far away and because i do have an exhaust that feeds the light and filter that is going when its on
Are you in a sealed room? Co2 will only work in a sealed environment. I always run a fan and carbon scrubber 24/7 if you are in a sealed room you wont lose any co2. Portable AC units also suck your co2 out so you are just wasting it. Best thing to do is make sure you are sealed up before running a co2 enriched room. If you are exhausting air from your grow room then you are definitely sucking out all the co2 so you are just wasting your money. For instance my room pulls air through ducting from a totally separate room and then that air is pulled and exhausted through the hoods and into the attic. You should not be pulling any air from your grow room when using co2.
 

Tiffay2180

Well-Known Member
Yah thats what i have heard and since its the intake for my lights i cant turn it off. I figured since co2 is heavy that it will fall before it gets sucked out
 

Tiffay2180

Well-Known Member
The filtet feeds the lights which exhausts into the veg. My boyfriend wont do anymore work in my room hesitant done it twice and said no more i just wish he would have listened to me in the first place but what do i know Im a fucking female. So its pointless to use co2 at all because everything is exhausted into the veg. That sucks. :(
 

Jeffdogg

Well-Known Member
Filter? A carbon filter? If so it shouldn't be hooked up as a vent like that. You want to filter the growroom air to remove the odor not filter the outside air into the room. You should be exhausting air out not in if anything.

Also if he wont do nomore work to your room then dont give him nomore nookie. after a week you will have the room the way you want it. :)
 

BeaverHuntr

Well-Known Member
The filtet feeds the lights which exhausts into the veg. My boyfriend wont do anymore work in my room hesitant done it twice and said no more i just wish he would have listened to me in the first place but what do i know Im a fucking female. So its pointless to use co2 at all because everything is exhausted into the veg. That sucks. :(
yeah so save your money and dont use the co2. Co2 isnt all that necessary unless you have a large scale grow or heat issues in your grow room. If you have a high plant count then you will need co2 because the plants will use up all the available co2 in your grow room and if you have heat issues you can run your grow into the low 90's. with co2. Your boyfriend sounds lazy tell him you will give him the best blow job of his life if he helps you out .
 
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