Are DIY or grow shop CO₂ Generators any good? 

I thought I noticed a slight difference in flower size near the exhale bag but not enough of an increase to warrant the 20/25 quid cost of it

Good tip, thanks, Ill secure it

when full colonized, co2 slower. have a half colonize bag instead.

this dudes bag looks like its pretty out of date and the mushroom has already consumed 100% of the substrate in there, so yea, no surprise it didn't work for him

thats odd. I put a TNB bottle into an empty tent and the PPM in the tent went up to 5000ppm

I did the same, man.I bought refills to last a whole grow..The co2 went up more when I was just sitting in the room breathing! Highest it ever got was 1200 for about 20 minutes after shaking.👎

I’ve read the bags take 30 days for decomposition to occur before C02 is released, any truth to that?

They do take some time to produce which results in PPM's levels that are on a bell curve, but it's predictable curve so it's not too hard to work around. Depending on the bag I'll see CO2 levels start going up within a week or so, but it won't reach consistent high levels for probably 3-4 weeks yeah. @@Outdoorsyshoresy

@@HyperactiveHighsthanks for that explanation. Just trying things out myself. My best and cheapest C02 alternative is me breathing in the tent lol

The best way to see if anything works is to try it yourself! It's funny you say that lol I made that exact joke in my video about using CO2 hahaha we are our own free CO2 generators! @@Outdoorsyshoresy

Keep your brew outside the tent, and run a rubber hose in through one of the lower ports/vents. Then have it in a jug of water, or a coffee jar with two holes in the lid. One for the hose, and one for the CO2 to get out into the tent. That would prob help keep spills down. Say you have four plants in an average setup. If you place the jug/jar in the centre, between all four plants. Then any CO2 given off by your brew will be right where it is needed most. Even if the average within the tent isn't as high as you'd like it to be. That CO2 will be entering right at the foliage level of all four plants. I haven't used one of those S shaped bubblers on top of a fermenter in years. I always just run a length of hose into a 2ltr jug 3/4 3/5 full of water. You're less likely to have a brew blowout, esp is it's a stronger one with an aggressive yeast. I would strongly suggest a little clip/peg to hold the tube snugly in place. Or drill two holes in the plastic lid of a large coffee jar. Takes to minutes to do that, and could save your brew. Or having to deal with a ltr plus of water spilling in your tent.

They did recently make that yeast that actually thrives a little better than normal in bright light I wonder if it's obtainable ❤❤❤❤❤❤❤

If you can generate alot of co2 you have to seal your tent and possibly run an AC inside to keep temps down. Dr. Bruce Bugbee has talked about this, I haven't worked out if it's financially beneficial but he says it is.

But what’s the end result like

@@hbpw857 I'm well pleased with the results - I can't give a comparison as Shane does as I ony have the one tent set-up so my opinion is based simply on and a before co2 vs after Co2 - and that leads me to believe I'm getting a 20+% increase in yields with Co2.....! - I hope that helps...!

I agree none of them work ,if not sure get a CO2 meter U will see .

They need to be opened 3 weeks.. he only had it opened 3 days...

No I spoke to the producers directly. The bags are ready to go, they may not be at their peak but they are producing CO2 from day one. I ordered two of the large bags and they were both expired by almost a year. I bitched to the manufacture and of course the supplier and they both sent me new bags and they did nothing, the volume of material is just too low to produce a significant amount of CO2. @@MrTravisjh2

Migro failed the exhale bags 💯

i just saw a video where a guy used a sealed five gallon bucket, and a a pump with an air stone in it that way it pushed out co2, and kept it mixed. i have yet to test this myself though.

When your working in the room?? The co2 will increase naturally unless you breathe like a plant

@@thatdude421duh😂

You’re not doing it right

Glad it helped!

I have a planted tank CO2 setup that may have to be re-purposed... Thanks for the idea! 😁✌️

You don't happen to have a video up of your system do you? I'd love to see your co2 method or at least read a paper on set up. I'm not into aquariums so I'm not certain about the subject

@@Khaymen223 I don't have a video. And it works because I have a small lung room. which makes it quite economical. Happy to try and answer any questions you may have though.

@@UbiquitousRomp I found a video on the subject. Hopefully I can get a set up. I'm shrinking my grow space so I'm hoping that will help as well. Thank you for the quick response

@@Khaymen223 make sure it's the stuff used by cleaning companies as it's the strongest.

I don't have a meter. But that's what I've been doing for a few years. What's the harm? It's practically less than $5 and whatever difference it does make is at least measurable, considering Shane's results.

I use 15L jugs, 2 cups sugar, 1 tbsp for yeast and 5 L warm water to start. Shake every day and add one per week. It’s a hassle but it works. Raises about 500 - 800 ppm for 4x4.

thanks for the info, i guess closed tent no exhaust fan and by add one you mean another tbsp of yeast? and how long before you wash it out and start over?

@@AstraI1 they last about a week and decrease over time sharply. I add a second one on week two and leave both in if it’s still producing bubbles. Each batch is different. Then on week three I remove the oldest and add a fresh one. It’s a hassle but cheap.

thanks for coming back to answer that I apprciate you def some great info def seems worth trying, hope you have a wonderful harvest

jeremy from BuildAsoil proved it can get a large grow tent to double the co2... with normal mushroom bags in a smaller raised grow tent above the plants bigger grow tent... got to 900 on the meter (similar to if you live in the same room as uour grow tent... without mushrooms.. gets to about double of outdoors)

Michigan company makes em and ships them pre activated.. What people don’t realize is that it takes about 30 to 40 days for the mycelium in the bag to really get going. I’ve tested a 8 pound bag putting out steady 8-900 ppm for 3 months after the 30 day activation period. I notice if the humidity is lower the bags slow to a crawl but if humidity is at around 55-65% they pump out a good bit of co2. I like to use em in veg and ain’t really over a noticed any real use in flower but 100% for veg co2 is beneficial.

​@@dertythegrowerI've gotten up to 800-900ppm with the XL Exhale CO2 kit, in a 5x5. They do indeed work. Not a really great difference, all around, so I don't always get em. I think it's been over a year..?!🤔👍💯✌️

Adding it is still better than not adding it. You will only get a tiny boost but your plants will be able to use more ppfd/dli in a day even with 30 extra ppm

​@@ChadAF_YTThe 10 grams extra Ill get doesn't out weigh the cost for the CO2, or mushroom bags. I think they start at 50. USD here in the States

Yeah. It's insanely expensive. To the point of basically being a scam.

His name is Shane

@@verbalkint98 I'm bad with names, thanks, i corrected it (:

@@Maedness. wait until you get older! It gets worse! Lol

IT was activate days before. however it was not raising the CO2 level for me.

use an F Zone fish tank generate with solenoid 100 bucks... 10kg of bicarb and 10 kg of citric acid. cost about 60 bucks and last 9 weeks. I have to reload it every 2/3 days, but I can maintain 1000ppm. it's hooked up to Digital IAQ Monitor Controller with Relay Function and lights out cut off. that you can get for under 150 bucks. This works well for me as the lung room is only 9x7 box room. so circulates well.

@cancer_sucks Not in winter. I have humidity issues in winter, so need to run a dehumidifier anyway, so sealing up and running co2 works well and the yield is always bigger than the summer runs. Plus with the co2 the plant can handle higher temps. But I don't get above 82f

Hey, Depends on what one you purchase, some come pre-inoculated and some don't.

I will do my own test and see if it really only releases 20 ppm. Considering they state it should be able to raise it by 400-500 ppm...

Yes it must be in a sealed room recommended no are exchanged except for when p p.m. gets too high to run the exhaust fan hooked up to a controller so it shuts off automatically without pulling all CO2 out of the area and of course having a carbon filter to help with the smell

The number is the difference in CO2 ppm from the start to finish of the test for each source.

tyvm @@MIGROLIGHT

Hey, It's mostly hay and sterilized manure pellets

it's TNB not RNB

Anyone that calls themselves a 'pro' then gives dogey info 🤔 🙄

Your not wrong but thats not totally true either 🤷

@@thatdude421 Hate, I’m not mad at you tho. I live in a weed legal state. I’ve grown by DWC, nutrient film, ebb and flow, river method, and nuitientless soil, and aeroponcally. Which is your favorite and why?

Do the draw strings on your tent not work?

@@Outdoorsyshoresywow, a smart ass that doesn't know what he is talking about on the internet. it's like I discovered general relativity. I want it sealed, not buttoned up, genius

BUT do you have a CO2 reader/monitor to see where your ambient is (usually 400-500 ppm) then after putting in the yeast/sugar to see if it actually increases?

xDDDDDDDDDDDDDDDD

​@cancer_sucks1 time fill though. How much to fill it and how often. It's worth it for a large grow facility but someone like me who is only allowed to grow 12 plants a year; not worth it.

where do you find dry ice lol

A lot of grocery stores sell at front of store

@jasonroth1508 in all grocery stores & at local CO2 distributors

Costs a fortune