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Free CO2 this season, bunch of new gear

  • Thread starter Thread starter homiefromtheshowme
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Free CO2 this season, bunch of new gear

homiefromtheshowme 18 Replies 1,204 Views
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homiefromtheshowme

homiefromtheshowme

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Apr 25, 2025
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#1
I'm back. Last years run I had to pull almost 2 weeks early before I left on vacation, still turned out to be some good smoke with my jet fuel being some of the stickiest I ever grown averaging just shy of 2 zips a plant on 4 plants in a 2.5x2.5. This year I moved out of the closet and into a bigger room for all my cultivation projects. This run is going to be fun, and I'm hoping I can bring some cool things to the community that I've been working on.

New gear-
New 4x2 tent from Amazon(get what you pay for)
New set of spider farmer pro soil sensors x3
New spider farmer ppfd and CO2 meters
Another spider farmer sf2000pro to run tandem with last years light

New genetics-
KY jealousy from the boys in Colorado. I've never had a vegging plant stink this bad. Thank you 🫡

The fun part...free CO2-
I put my cannabis growing on the back burner to further my research in mycology. On this path I learned how much CO2 is produced by mass of substrate, the CO2 and O2 needs of mycelium, grown some very interesting and useful fruits. I've also gained quite a bit of knowledge overall about fungal life, it's purpose and uses in all our lives especially here in the garden. I am not an expert in mycology, I can't identify every species by mycelium samples or list off the benefits of every medicinal fungi. I did however come up with a way to capture the CO2 produced and pump it into my green tent in a regulated and controlled manner that doesn't unnecessarily fill the tent with CO2 over night or hit weird spikes at lights on etc. I'll attach a few pictures for now, more when I do a full write up on my setup after I collect some more data. But I have sustained 1100 ppm daily with a few exceptions due to design errors and bad initial calculations.
Free co2 this season bunch of new gear 2
Free co2 this season bunch of new gear
Free co2 this season bunch of new gear 4
Free co2 this season bunch of new gear 3
 
#2
michsmith said:
That’s a really solid setup upgrade. Moving from a closet to a dedicated room makes a huge difference for airflow, stability, and overall plant health. Running two lights together in a 4x2 should definitely give you better canopy coverage too.


Your CO2 idea using mycology is actually really interesting. A lot of growers underestimate how much CO2 fungal activity produces during substrate colonization. If you’re able to keep levels around 1000–1200 ppm consistently, that’s right in the sweet spot for cannabis during strong vegetative growth and early flower. The tricky part is exactly what you mentioned — avoiding spikes or dumping too much CO2 when lights are off.


The KY Jealousy genetics sound fire too. Some of those newer lines coming out of Colorado have insanely loud terps even in veg. Always a good sign.


If anyone here is newer to growing or just learning the basics about the plant itself, I actually found a pretty solid breakdown explaining cannabinoids, THC vs CBD, and how cannabis https://trueleafsupply.com/what-is-cannabis/


Looking forward to seeing the full write‑up on your CO2 system once you gather more data. Combining mycology with cultivation is a really cool direction.
Click to expand...
ya there’s no free advertising so don’t do that again
 
#3
Well, so far so good. Have not done an official write up for 2 main reasons. The first, is that it's as much of a job as growing plants, plus all the sterile technique, filtering, extra equipment. 2nd main reason, is then you have to figure out what to do with what you get....as far as the grow. Things were going along great, had to reduce plant count, flipped to flower, and then my environment sensor decided to go crazy and drop out it's reading. I dropped extra sensors in cuz my environment was wrong and I couldn't figure out why so top of tent mid level and floor and they all started climbing past 90% humidity when I closed the door. Fixed that. One plant started to get deficient, perking up decent now. Maintained a fairly steady 800 ppm in veg and was at 1000 but backed everything down to sort out environment. Update with better pictures coming soon
IMG 20260412 124227437
IMG 20260412 124257596
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#7
homiefromtheshowme said:
I'm back. Last years run I had to pull almost 2 weeks early before I left on vacation, still turned out to be some good smoke with my jet fuel being some of the stickiest I ever grown averaging just shy of 2 zips a plant on 4 plants in a 2.5x2.5. This year I moved out of the closet and into a bigger room for all my cultivation projects. This run is going to be fun, and I'm hoping I can bring some cool things to the community that I've been working on.

New gear-
New 4x2 tent from Amazon(get what you pay for)
New set of spider farmer pro soil sensors x3
New spider farmer ppfd and CO2 meters
Another spider farmer sf2000pro to run tandem with last years light

New genetics-
KY jealousy from the boys in Colorado. I've never had a vegging plant stink this bad. Thank you 🫡

The fun part...free CO2-
I put my cannabis growing on the back burner to further my research in mycology. On this path I learned how much CO2 is produced by mass of substrate, the CO2 and O2 needs of mycelium, grown some very interesting and useful fruits. I've also gained quite a bit of knowledge overall about fungal life, it's purpose and uses in all our lives especially here in the garden. I am not an expert in mycology, I can't identify every species by mycelium samples or list off the benefits of every medicinal fungi. I did however come up with a way to capture the CO2 produced and pump it into my green tent in a regulated and controlled manner that doesn't unnecessarily fill the tent with CO2 over night or hit weird spikes at lights on etc. I'll attach a few pictures for now, more when I do a full write up on my setup after I collect some more data. But I have sustained 1100 ppm daily with a few exceptions due to design errors and bad initial calculations.View attachment 2611721View attachment 2611717View attachment 2611724View attachment 2611723
Click to expand...
Yessss! After my run through with mycology for a bit. I realized they're literally magical companion plants for indoor grows
 
#8
DaddyPrime2 said:
Yessss! After my run through with mycology for a bit. I realized they're literally magical companion plants for indoor grows
Click to expand...
Trying to get more into companion planting. I was raised growing row crops and applying synthetics for everything. This years garden outdoors will look much different. So many benefits of companion planting. If I wasn't such a control freak I'd make the switch to living soil with cover crops etc. in time
 
#9
homiefromtheshowme said:
Trying to get more into companion planting. I was raised growing row crops and applying synthetics for everything. This years garden outdoors will look much different. So many benefits of companion planting. If I wasn't such a control freak I'd make the switch to living soil with cover crops etc. in time
Click to expand...
You can be a control freak and run living soil lol maybe not a clean freak but you can definitely be in control of your living soil
 
#15
GNick55 said:
it’s not a fade it’s incorrect feeding and possible light stress,.
really no such thing as a fade indoors unless the environment was manipulated on purpose,.
Click to expand...
good call. Environment, can't get humidity level and temps are trying to climb off the scale
 
#16
I should have been more specific. Have purple coming in in places, "fade" was certainly the wrong term. My humidity at night was slamming down, then wasn't recovering at lights on, add a bunch heat...been a rough week
 
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