CO2 consumption rate of cannabis....

[ShLUbY]

So I'm considering switching to a sealed room this summer to help prevent sucking out my A/C faster than I can make it. I run an organic soil water only garden, and I would only be considering running CO2 at atmospheric levels for my room (probably have it ramp to 500ppm and shut off, and release again at 400ppm). I have a 20lb. tank and reg, but no controller yet. How often should I expect to refill this tank? I'll be running 10-12 medium size plants in a perpetual grow with three 600s running (so ideally 4 under each lamp). Thanks for any input. Happy Growing everyone

Edit: forgot to mention my space is about 650 cu. ft.

 

[0321Marine]

Do it.. but you do not need to use a tank and regulator. It will be expensive, but if thats how you want to do it.. go for it.

I would recommend just use simple cheap methods, as they work just as well. (Spores/Straw, Ethanol, Vinegar/baking soda, etc..)

Its a small 3x3 room, but feel free to check out my grow journal if you want to see about cheap Co2 and how much it can help: https://www.rollitup.org/t/romulan-1-plant-clone-to-scrog.960908/page-2

 

[ShLUbY]

Do it.. but you do not need to use a tank and regulator. It will be expensive, but if thats how you want to do it.. go for it.

I would recommend just use simple cheap methods, as they work just as well. (Spores/Straw, Ethanol, Vinegar/baking soda, etc..)

Its a small 3x3 room, but feel free to check out my grow journal if you want to see about cheap Co2 and how much it can help: https://www.rollitup.org/t/romulan-1-plant-clone-to-scrog.960908/page-2

how efficient would that be to do in a 14.5 x 6.5 room though... with 12 plants... seems like tank and reg (i already have it) will be the way to go. definitely will take a peek at your garden. Cheers.

 

[kingzt]

So I'm considering switching to a sealed room this summer to help prevent sucking out my A/C faster than I can make it. I run an organic soil water only garden, and I would only be considering running CO2 at atmospheric levels for my room (probably have it ramp to 500ppm and shut off, and release again at 400ppm). I have a 20lb. tank and reg, but no controller yet. How often should I expect to refill this tank? I'll be running 10-12 medium size plants in a perpetual grow with three 600s running (so ideally 4 under each lamp). Thanks for any input. Happy Growing everyone

Edit: forgot to mention my space is about 650 cu. ft.

It's hard question to answer but if the room is completely sealed your tank should last anywhere from 1-2 weeks in your size room. Your best bet is to get a regulator and monitor/controller.

 

[ShLUbY]

It's hard question to answer but if the room is completely sealed your tank should last anywhere from 1-2 weeks in your size room. Your best bet is to get a regulator and monitor/controller.

that's the plan. I was hoping it would last longer than 1-2 weeks running @ atmospheric, but i kinda anticipated it wasn't gonna last as long as I was hoping haha.

 

[kingzt]

how efficient would that be to do in a 14.5 x 6.5 room though... with 12 plants... seems like tank and reg (i already have it) will be the way to go. definitely will take a peek at your garden. Cheers.

Very efficient, just make sure your room is sealed so there is no leaking anywhere. You'll be happy with the results. I started in a little 10' by 10' room and never went back. I can get most strains very dense if I don't have any hiccups along the way. It's one thing in my opinion that you can do to separate your product from others especially commercial buds. I don't know anyone personally who runs co2 on a large scale level.

 

[kingzt]

that's the plan. I was hoping it would last longer than 1-2 weeks running @ atmospheric, but i kinda anticipated it wasn't gonna last as long as I was hoping haha.

It should if your plan is to running it lower then 1200 ppms. If you want to see the best results run it at 1500 ppms. You can also buy a less expensive controller that only brings up to 1500 ppms. I believe the ones where you can set to a desired ppm might cost a bit more.

 

[kingzt]

that's the plan. I was hoping it would last longer than 1-2 weeks running @ atmospheric, but i kinda anticipated it wasn't gonna last as long as I was hoping haha.

Find a welding supply store for co2 also, cheaper than getting at the hydro stores. Most of them get from welding places too.

 

[0321Marine]

how efficient would that be to do in a 14.5 x 6.5 room though... with 12 plants... seems like tank and reg (i already have it) will be the way to go. definitely will take a peek at your garden. Cheers.

You would just need to make a larger ethanol bottle basically. If you do some research, you could actually get some hootch out of it at the same time.. lol. That never my goal though. You just need to make a large enough batch of sugar/yeast/water/nutrients to release Co2. Once you have it going, you maintain it weekly or sooner by adding sugar and fresh water for the yeast to feed on. Id guess a 5 gal. container would do you with that size.. might need 2 of them? But again.. you already have the tank set up and if fills are cheap enough you may be okay. But many complain about how much it costs to refill. Now with your plan to just maintain ambient levels, this will be much easier. But I would invite you to take it a step further and reap some serious benefits from Co2 saturation. Best of luck Shluby!

 

[ShLUbY]

It should if your plan is to running it lower then 1200 ppms. If you want to see the best results run it at 1500 ppms. You can also buy a less expensive controller that only brings up to 1500 ppms. I believe the ones where you can set to a desired ppm might cost a bit more.

yeah i run organic living soil, so i'm afraid the plants would eat my soil out of house and home haha, until i start playing with the recipe to suit it for enhanced CO2 levels. That's why I'm just gonna run atmospheric for a bit.

 

[ShLUbY]

Very efficient, just make sure your room is sealed so there is no leaking anywhere. You'll be happy with the results. I started in a little 10' by 10' room and never went back. I can get most strains very dense if I don't have any hiccups along the way. It's one thing in my opinion that you can do to separate your product from others especially commercial buds. I don't know anyone personally who runs co2 on a large scale level.

when I switched to organic soil, i already separated myself from the rest around me haha. but taking it up a notch with enhanced CO2 would be nice... just gonna take some tuning of the recipe . Cheers. thanks for the suggestions. I'll have to look into them.

@0321Marine so out of curiosity, what method do you find works the best, and in what quantities are you using the ingredients for your space?

 

[kingzt]

when I switched to organic soil, i already separated myself from the rest around me haha. but taking it up a notch with enhanced CO2 would be nice... just gonna take some tuning of the recipe . Cheers. thanks for the suggestions. I'll have to look into them.

@0321Marine so out of curiosity, what method do you find works the best, and in what quantities are you using the ingredients for your space?

I ran dairy doo which is a soil made in MI and suppose to last from start to finish. By the 4th week in flower I started seeing deficiencies and had to supplement the soil. I run co2 and use double ended bulbs so I'm pushing my ladies. Very smart on your part to get acclimated before you jump in it.

 

[ShLUbY]

I ran dairy doo which is a soil made in MI and suppose to last from start to finish. By the 4th week in flower I started seeing deficiencies and had to supplement the soil. I run co2 and use double ended bulbs so I'm pushing my ladies. Very smart on your part to get acclimated before you jump in it.

I'm using dairy doo in my university's greenhouse for a living soil project to show them how sustainability works rather than the methods they are using now. Nice compost, heavy as fuck though... i usually about 25-30% compost in my cannabis mix of homemade EWC and malibu's blend, but that dairy doo... 15-20% is plenty haha.

I'm not surprised in the least that the dairy doo ran out of nutrients... any compost would unless you amended the shit out of it with soil amendments while making it. i've been adding more amendments to my worm bin to try and up the nutrient content a bit. Bout to harvest my bins in a week or two, and can't wait to use this run!

 

[kingzt]

I'm using dairy doo in my university's greenhouse for a living soil project to show them how sustainability works rather than the methods they are using now. Nice compost, heavy as fuck though... i usually about 25-30% compost in my cannabis mix of homemade EWC and malibu's blend, but that dairy doo... 15-20% is plenty haha.

I'm not surprised in the least that the dairy doo ran out of nutrients... any compost would unless you amended the shit out of it with soil amendments while making it. i've been adding more amendments to my worm bin to try and up the nutrient content a bit. Bout to harvest my bins in a week or two, and can't wait to use this run!

Yeah it's definitely heavy. I had issues with water logged plants. The 301 mix is supposedly to last the whole cycle I've been told by people on here and a representative from the company but my environment is made to produce hard working plants. I'd like to use it again and add some more minerals and some kind of blend to it. I'm using roots organic as my base rights now but it's heavily amended and I believe it will last all the way through flower.

 

[NaturalFarmer]

I run two sealed rooms with bottles and maybe can help you out. I have the Autopilot controllers. Consumption depends a lot on how sealed you get your room as well as what phase the plants are in. My ambient is usually around 400ppm but keep the room around 800ppm until the last few weeks I stop giving any and let it run at ambient (mostly because I don't see the plant using any CO2 for swell.)

Once my room was finished, I put the gas up to 1000 ppm with an empty room and came back 24 hours later and it was around 950. Im fairly sure my door isn't as sealed as it was when I finished it.

I see my plants using around 100-200ppm an hour during heavy growth with a similar footprint as yours.

My soil produces a good amount of CO2 and I use the bottle to supplement as well but it is hard to quantify, so Im sure that number is probably much more for a hydro grower in terms of consumption.

My bottles have been lasting about 2-3 months.

 

[kingzt]

I'm using dairy doo in my university's greenhouse for a living soil project to show them how sustainability works rather than the methods they are using now. Nice compost, heavy as fuck though... i usually about 25-30% compost in my cannabis mix of homemade EWC and malibu's blend, but that dairy doo... 15-20% is plenty haha.

I'm not surprised in the least that the dairy doo ran out of nutrients... any compost would unless you amended the shit out of it with soil amendments while making it. i've been adding more amendments to my worm bin to try and up the nutrient content a bit. Bout to harvest my bins in a week or two, and can't wait to use this run!

Hey do you have any tips on how to speed up the breaking down of a top dress? I top dressed after i flipped to flower and mulched as well. Is there any thing I can do to speed up that process? thanks

 

[reallybigjesusfreak]

I ran dairy doo which is a soil made in MI and suppose to last from start to finish. By the 4th week in flower I started seeing deficiencies and had to supplement the soil. I run co2 and use double ended bulbs so I'm pushing my ladies. Very smart on your part to get acclimated before you jump in it.

What is your double ended setup? I am trying to make the switch from single to double ended, but am having a hard time finding reviews of stuff.

 

[kingzt]

What is your double ended setup? I am trying to make the switch from single to double ended, but am having a hard time finding reviews of stuff.

Gavitas, running them full blast. They run hot as hell but makes up for it by pushing the plants. 5,000 btu per lamp when you factor in dehumidifier and also if ambient temps outside your room get warm.

 

[ShLUbY]

Hey do you have any tips on how to speed up the breaking down of a top dress? I top dressed after i flipped to flower and mulched as well. Is there any thing I can do to speed up that process? thanks

yeah, mix it with compost, and keep a mulch over it to keep top soil from drying out. having it mixed with compost surrounds it with organisms that will break it down. you can even water in a compost tea or compost extract a week after you topdress to boost populations in the soil since there is new food to break down. that's how I do it!

 

[kingzt]

yeah, mix it with compost, and keep a mulch over it to keep top soil from drying out. having it mixed with compost surrounds it with organisms that will break it down. you can even water in a compost tea or compost extract a week after you topdress to boost populations in the soil since there is new food to break down. that's how I do it!

Thank you, that's what I figured. I have over done with just water and molasses. Seemed like the micro herd must of been on overdrive because I had some deficiencies