Dry Ice?
- Thread starter the.fatman.cometh
- Start date
videoman40
Well-Known Member
Holy cow, chill out dude! The reason I told hin not to place his dryice in water is because the main problem with dryice is how fast it evaporates, and if you place it in water, it'll evaporate even faster. Which will be waisting your money that you spent on the dryice.
Peace
(PS enjoy the bowl dude.)
Peace
(PS enjoy the bowl dude.)
sk3tch3
Well-Known Member
holly cow is right i am a dick when i drink coffee! my tone was super harsh!
ps the bowl was great thx!!
wkarma
Well-Known Member
I have been using 4 lbs of dry ice a day in my grow room for about 2 months now 4 days a week and my girls seem to love it. The only down side is the cost and having to go pick it up every day. The thing is there is no way to keep it. It does evaporate at about 10 lbs a day even in a cooler that same 10 lbs only last a day and a half at the most.
peace
peace
the.fatman.cometh
Well-Known Member
So...could you maybe alternate the dry ice every other day, I mean once you introduce it into the ecosphere, can you do that?
And sk3tch3 it's cool amigo, thats why you might wanna make a cannabis creamer for your coffee!
LOL
And sk3tch3 it's cool amigo, thats why you might wanna make a cannabis creamer for your coffee!
LOL
videoman40
Well-Known Member
Hey fatman, you do not have to use the dryice everyday.
I know that I don't do it every day.
Peace
I know that I don't do it every day.
Peace
Hi All,
Newb grower here. Thought this would be a good thred to jump in...
I found the suggestions on the use of dry ice quiet helpful as I've been wondering about how to regulate the sublimation and the concentration of CO2 in my 72 Qubic FT (4x3x6) grow room. The problem I am having so far is that the co2 is depleted to rapidly. I have tried to seel my room as good as possible and ducts with in + outlet only running through my 400 Watt HID are active. I need to work further in seeling all the littel cracks it apears
. I got my self a cheap CO2 analyzer for $12 for two tests plus $6 for 2 additional tests to measure the CO2 cocentration at differnt time points after adding a designated amount of dry ice to my grow room in my case it was 25 grams which I calculated to increase the CO2 to +10000 PPM if all sublimied at ounce (by dropping in water). And indeed when measuring after 20 minutes it was way off the scale max beeing 5000ppm. 2 hours later it was only at 1500ppm. Well I should also note that I had to open the door each time to take an air sample, so maybe i lost most Co2 their. Maybe if I used the slow sublimation method suggested by Videoman I can keep it above 1500ppm for a more sustained time. Hmmm I wonder if that would work?
My first plants are now 3 weeks old and around 6"-7" tall. The question I really want to ask is there a way to figure out if all components (Light, Heat, Nutrients) are avaiblable in excess for the CO2 to have an effect?
Any help appreciated.
Peace
Newb grower here. Thought this would be a good thred to jump in...
I found the suggestions on the use of dry ice quiet helpful as I've been wondering about how to regulate the sublimation and the concentration of CO2 in my 72 Qubic FT (4x3x6) grow room. The problem I am having so far is that the co2 is depleted to rapidly. I have tried to seel my room as good as possible and ducts with in + outlet only running through my 400 Watt HID are active. I need to work further in seeling all the littel cracks it apears
. I got my self a cheap CO2 analyzer for $12 for two tests plus $6 for 2 additional tests to measure the CO2 cocentration at differnt time points after adding a designated amount of dry ice to my grow room in my case it was 25 grams which I calculated to increase the CO2 to +10000 PPM if all sublimied at ounce (by dropping in water). And indeed when measuring after 20 minutes it was way off the scale max beeing 5000ppm. 2 hours later it was only at 1500ppm. Well I should also note that I had to open the door each time to take an air sample, so maybe i lost most Co2 their. Maybe if I used the slow sublimation method suggested by Videoman I can keep it above 1500ppm for a more sustained time. Hmmm I wonder if that would work?My first plants are now 3 weeks old and around 6"-7" tall. The question I really want to ask is there a way to figure out if all components (Light, Heat, Nutrients) are avaiblable in excess for the CO2 to have an effect?
Any help appreciated.
Peace
Seedlessone
Well-Known Member
take a look at my thread...it answers all Co2 questions....have fun
https://www.rollitup.org/indoor-growing/9021-co2-answered.html#post81176
https://www.rollitup.org/indoor-growing/9021-co2-answered.html#post81176
videoman40
Well-Known Member
Thanks Seedless! Good post! Why do you think 2000ppm CO2 is toxic to plants? I do not think that is the case. Some grow rooms run occasional 10000ppm to get rid of bugs. But your post does not answer my main question. How do I now all my factors are in excess for CO2 to have an effect...
Peace
Peace
videoman40
Well-Known Member
2000ppm is not toxic to plants. Commercial growers raise there ppm periodically to 15,000 to kill off any possible infestations.
For additional co2 to be beneficial, your plants need to have there needs met, like HID lighting, additional feedings beyond the nutrients directions, as they will consume twice the nutes over a normal grow. You need to dial in your grow, for the strain your growing. Practice, and learn what actually works best for you.
Peace
For additional co2 to be beneficial, your plants need to have there needs met, like HID lighting, additional feedings beyond the nutrients directions, as they will consume twice the nutes over a normal grow. You need to dial in your grow, for the strain your growing. Practice, and learn what actually works best for you.
Peace
Thanks Videoman. I seeled up my room further now I can sustain above 1500ppm for 4 hours with 25g of dry ice. If I could just make it work for 8 hours that would be perfect. The plants really seem to like the dry ice they are showing a good boost in growth. Without the the fresh air running the humidty builds up and so does the temp at 93. Is 93 ok with CO2? Is the humidty a problem?
Cheers
Cheers