Anyone using a monotub mushroom grow setup as a CO2 generator?

  • Thread starter MacroLogos
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MacroLogos

MacroLogos

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So, as I was watching this short video on monotub mushroom growing:


... it seems like it would sit perfectly on a 4x4 tent, and because mushrooms create co2 as they grow, it could easily be vented into the tent and provide a constant flow of co2.

Has anyone tried this yet? How did it go?
 
Observationist

Observationist

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I just need to source the spores I want and I’ll update when I’m getting it set up
 
MacroLogos

MacroLogos

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I just need to source the spores I want and I’ll update when I’m getting it set up
Nice. I'm planning on setting this up as well. If we don't get any responses to this post, lets start journal threads and document the experiments as best we can - Anyone joining in, post journal links in this thread please?

I also posted this question to that video's comments... maybe it will get some responses too. I'll repost any fruitful comment's here.

I am thinking humidity will be a problem for many people and so this might only be viable in dry regions.

Over this summer, I used 2 evaporative coolers to cool & drive humidity levels up to get VPD in range in a 4x4 tent, in an unsulated well vented shop... this required running one cooler outside with exhause into the shop - driving up the RH to 20-40% in there, and then running the other one inside the shop and venting it into the tent... which caused it to suffer a bit in cooling power, but got the RH in the tent up to 60-70%... I know I can ditch one and still keep temps under 85 on a 110+ day, and hopefully the humidity comming with the co2 from the monotub will bring RH up to range, but not out of range to the 'wet side' of VPD targets.
 
Observationist

Observationist

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Sweet will do

I know there’s a few people here growing shrooms of all kinds, surely they’ll chip in as well.
 
Observationist

Observationist

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I would like to get a dehum and another humidifier but that’ll be down the road.
 
Observationist

Observationist

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It’s dry here in Tulsa usually and I just spray the tent for now to keep the humidity up.
 
MacroLogos

MacroLogos

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It’s dry here in Tulsa usually and I just spray the tent for now to keep the humidity up.
I use 2 of these types of coolers (my designs are more evolved) to dump cool humidity into the shop, and tent, and then to lower humidity in the tent, I just vent the shop humidity. It is a bit of a juggling act at times, but made it possible to get a summer crop with my setup. You might find this works better than a humidifier.

 
Observationist

Observationist

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I use 2 of these types of coolers (my designs are more evolved) to dump cool humidity into the shop, and tent, and then to lower humidity in the tent, I just vent the shop humidity. It is a bit of a juggling act at times, but made it possible to get a summer crop with my setup. You might find this works better than a humidifier.



Oh shit

I might just do that

Thanks
 
MacroLogos

MacroLogos

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Here's a link to a paper I just found on the use of mushrooms to generate co2 for use growing lettus that should be worth a read (I only now reading it):

 
Wandering81

Wandering81

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So, as I was watching this short video on monotub mushroom growing:


... it seems like it would sit perfectly on a 4x4 tent, and because mushrooms create co2 as they grow, it could easily be vented into the tent and provide a constant flow of co2.

Has anyone tried this yet? How did it go?
If your scrubbing your tents air with a filter, the air circulates too fast for co2 to do anything. Just gonna suck it out of the tent with the other stinky air. Same concept as those co2 mushroom bags at the hydro store. Bigger rip off that bottled nutes
 
MacroLogos

MacroLogos

134
43
If your scrubbing your tents air with a filter, the air circulates too fast for co2 to do anything. Just gonna suck it out of the tent with the other stinky air. Same concept as those co2 mushroom bags at the hydro store. Bigger rip off that bottled nutes
Good caveat.

We don't run a filter, but dealing with heat is requiring a higher air flow being vented, however...

My brother has a 1k watt sodium with a cased vented hood that can be used to segregate it (and the high air flow) from the main tent.
 
Swagmasterflex

Swagmasterflex

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I've been thinking about doing using a 3 compartment tent. My only concern is the effect spores might have on my plants, I'm not sure if the fungus could effect the plants negatively. I'm definitely subscribing, and hopefully I'll have some info to contribute!
 
MacroLogos

MacroLogos

134
43
I've been thinking about doing using a 3 compartment tent. My only concern is the effect spores might have on my plants, I'm not sure if the fungus could effect the plants negatively. I'm definitely subscribing, and hopefully I'll have some info to contribute!
Nice! I had considered a few ideas on setting this up in a 4x4x7 tent... in that chunk of upper space, but the tent is going to get too cramped.

The approach I am currently favoring is to put the tub outside, on top of the tent. I'm thinking this will give me room to setup 3-4 more tubs if one isn't enough.

I also considered creating a "lung tub" as well, but that's feeling a bit Goldbergish.

Mushroom spores won't hurt anything (in soil.. not sure about hydro setups, but I doubt they would corrupt the grow solutions), however, if VPD is not dialed in molds and disease start manifesting at 0.5 kPa (and below)... and exhaust from these monotub will drive up tent humidity.
 
Swagmasterflex

Swagmasterflex

47
18
Nice! I had considered a few ideas on setting this up in a 4x4x7 tent... in that chunk of upper space, but the tent is going to get too cramped.

The approach I am currently favoring is to put the tub outside, on top of the tent. I'm thinking this will give me room to setup 3-4 more tubs if one isn't enough.

I also considered creating a "lung tub" as well, but that's feeling a bit Goldbergish.

Mushroom spores won't hurt anything (in soil.. not sure about hydro setups, but I doubt they would corrupt the grow solutions), however, if VPD is not dialed in molds and disease start manifesting at 0.5 kPa (and below)... and exhaust from these monotub will drive up tent humidity.
Luckily I'm in CO,I need all of the humidity Lol! Have you found a reputable source for spores?
 
MacroLogos

MacroLogos

134
43
Luckily I'm in CO,I need all of the humidity Lol! Have you found a reputable source for spores?
Arizona here, and added humidity is needed here as well.

Haven't ordered yet, but there are plenty of sources online that have been in business for decades.
 

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