1400 ppms of co2 at night.. wtf. helppp.

[DLOPEZ1420]

Recently installed my co2 controller (atlas 3).

I'm having a problem with my grow room at night my room is reaching 1600 PPM's at night without my co2 tanks in the room I was wondering if anybody else has had a similar problem ? Maybe due to organic soil resperation?Through out the day it goes down to 1000 ppms. But as soon as lights go out the ppms start climbing.

Please help ...

All my ladys are healthy.. except for a couple of my og's that arestarting to yellow. Could this be do to the amounts of co2 stoping the production of robusto?

Again any help would be appreciated.

Here is some research findings of my own.

https://www.icmag.com/ic/showthread.php?t=221893


http://en.m.wikipedia.org/wiki/Soil_respiration

Thanks again. Here is my garden at day 36 of flowering...

 

[chuck estevez]

plants give off c02 at night

 

[DLOPEZ1420]

Thanks for the reply. This is common knowledge. My question is concerning the ppms of 1400 to 1600. Outside plants only see about 600. I know that anything over 850 at night stuns growth and causes chlorosis of the leaves. . How do iregulate these ppms at night.

I have a 4 inch exhaust running all night..

Still nothing..

 

[1itsme]

well... assuming your controler is not out of cal., you could run a bigger exhaust. im assuming that the co2 is from your plants in the room and from soil micro's. if its from outside, that rocks, just run your lights at night.

 

[bird mcbride]

When the lights are off the mj plant breaths o2 and emit co2 and when the lights are on they breath co2 and expell o2. You need positive air exchange...or back to back systems.

 

[DLOPEZ1420]

When the lights are off the mj plant breaths o2 and emit co2 and when the lights are on they breath co2 and expell o2. You need positive air exchange...or back to back systems.

Positive air exchange? Back to back system? Sound interesting..

Can u explain or point me in the direction?

 

[1itsme]

yeah the back to back system sounds ineresting.

 

[cephalopod]

I have a sentinel chhc-4 and see levels this high as well. It's also a sealed room.

 

[cannawizard]

Thanks for the reply. This is common knowledge. My question is concerning the ppms of 1400 to 1600. Outside plants only see about 600. I know that anything over 850 at night stuns growth and causes chlorosis of the leaves. . How do iregulate these ppms at night.

I have a 4 inch exhaust running all night..

Still nothing..

Can you post any academic studies that state cannabis plants grown under enviros with c02 lvls higher than 850ppm at (night/day) --stuns growth & causes chlorosis of the leaves??

--that ICmag link you posted was about wheat & rice studies, got any studies on Cannabis?

i've tested 2500ppm (night) on 30+ cannabis strains (6 of those were kush types) with no adverse effects.. what strain are you growing?

 

[DLOPEZ1420]

I have a sentinel chhc-4 and see levels this high as well. It's also a sealed room.

Glad to see I'm not the only only one with this situation. have you ever had any adverse effects due to high PPM's at night ? Also if you have high PPM's at night do you still inject Co2 throughout the day or does the high PPM's last throughout the day?

 

[DLOPEZ1420]

Can you post any academic studies that state cannabis plants grown under enviros with c02 lvls higher than 850ppm at (night/day) --stuns growth & causes chlorosis of the leaves??

--that ICmag link you posted was about wheat & rice studies, got any studies on Cannabis?

no i dont. But from what that scientific study states is that wheat and rice are both c3 flowering plants..

i've tested 2500ppm (night) on 30+ cannabis strains (6 of those were kush types) with no adverse effects.. what strain are you growing?

All im worried about is the stop of robosto production with anything over 850 ppm of co2 at night. Was that ppm level of 2500 reached through injection or just plant and soil resperation? Also what are ur thoughts in soil resperation?
Currently running..

Bubble gum kush
Lady purple
Grape Ape
Og kush
Nyc diesel
Kushadelic
Sour candy
Blue chesse
Exodus chesse
Fruity chronic juice

My crosses;

Sour Ak47 x Lady purple
White widow x Lady purple
Kushadelic x Lady purple

Thats just flowering..

In veg. I got all that plus

Plusberry
Querkle
Ace of spades
Chernobly
Agent orange
Dr.who
Quantum kush

Check out the journal.

https://www.rollitup.org/grow-journals/649892-2k-plushberry-querkle-ace-spades-2.html

Thanks for the input homie..

 

[cannawizard]

All im worried about is the stop of robosto production with anything over 850 ppm of co2 at night. Was that ppm level of 2500 reached through injection or just plant and soil resperation? Also what are ur thoughts in soil resperation?

From my personal experience, I don't think the robosto production (in Cannabis) is inhibited because of higher c02 levels ~ And I haven't seen anything in printed literature or online studies that suggest so.. BUT-- there can always be those certain un-documented spontaneous occurrences that do fall into that category, nature is unpredictable at times..

My c02 delivery was by injection (tanks) , honestly.. I have ran several sealed enviros with soil as the only medium, and I did not notice the c02 levels spike from respiration (room temp varied from 78f-ON / 68f-OFF).. The soil was a mixture of FFoF & some amendments.. And feed was 90% ACT~ c02 levels I experimented with was 1500ppm--5k+ppm (highest was a 2wk random test using 8k) --even at those lvls, I did not see any negative effects on the plants..

Maybe its the soil you are using? (I'm just trying to think of factors that might come into account concerning your grow & the co2 lvls you are seeing)

 

[cannawizard]

Nice selection of strains btw

 

[chuck estevez]

Can you post any academic studies that state cannabis plants grown under enviros with c02 lvls higher than 850ppm at (night/day) --stuns growth & causes chlorosis of the leaves??

--that ICmag link you posted was about wheat & rice studies, got any studies on Cannabis?

no i dont. But from what that scientific study states is that wheat and rice are both c3 flowering plants..

i've tested 2500ppm (night) on 30+ cannabis strains (6 of those were kush types) with no adverse effects.. what strain are you growing?

All im worried about is the stop of robosto production with anything over 850 ppm of co2 at night. Was that ppm level of 2500 reached through injection or just plant and soil resperation? Also what are ur thoughts in soil resperation?
Currently running..

Bubble gum kush
Lady purple
Grape Ape
Og kush
Nyc diesel
Kushadelic
Sour candy
Blue chesse
Exodus chesse
Fruity chronic juice

My crosses;

Sour Ak47 x Lady purple
White widow x Lady purple
Kushadelic x Lady purple

Thats just flowering..

In veg. I got all that plus

Plusberry
Querkle
Ace of spades
Chernobly
Agent orange
Dr.who
Quantum kush

Check out the journal.

https://www.rollitup.org/grow-journals/649892-2k-plushberry-querkle-ace-spades-2.html

Thanks for the input homie..

if the plants aren't taking in the c02, why would the levels matter at night? I run a complete sealed room with 0 exhaust, EVER. I have never seen any issues with high c02 levels at night. For almost 4 years now.

 

[DLOPEZ1420]

My c02 delivery was by injection (tanks) , honestly.. I have ran several sealed enviros with soil as the only medium, and I did not notice the c02 levels spike from respiration (room temp varied from 78f-ON / 68f-OFF).. The soil was a mixture of FFoF & some amendments.. And feed was 90% ACT~ c02 levels I experimented with was 1500ppm--5k+ppm (highest was a 2wk random test using 8k) --even at those lvls, I did not see any negative effects on the plants..

Well with all that being said I think that's enough scientific proof for me to go ahead and reconnect my co2 tanks.

Is there specific times you put your co2 to pump into your room during the daytime?

Thanks for giving me all the information youve given me. it's really been helpful.

Nice selection of strains btw

Thanks.. i try only messing with straight fire...

Cant wait till i get the tga garden up and flowering..

 

[cannawizard]

My c02 delivery was by injection (tanks) , honestly.. I have ran several sealed enviros with soil as the only medium, and I did not notice the c02 levels spike from respiration (room temp varied from 78f-ON / 68f-OFF).. The soil was a mixture of FFoF & some amendments.. And feed was 90% ACT~ c02 levels I experimented with was 1500ppm--5k+ppm (highest was a 2wk random test using 8k) --even at those lvls, I did not see any negative effects on the plants..

Well with all that being said I think that's enough scientific proof for me to go ahead and reconnect my co2 tanks.

Is there specific times you put your co2 to pump into your room during the daytime?

Thanks for giving me all the information youve given me. it's really been helpful.

Glad it was helpful But always continue your own research, and experiment too~ Thats how I came up with my findings, never just take someone else word as the final say

I used a sentinel controller, so it pretty much started pumping/fixing the c02 levels as soon as the lights turned on~

made things easy peasy for c02 control

 

[chuck estevez]

Glad it was helpful But always continue your own research, and experiment too~ Thats how I came up with my findings, never just take someone else word as the final say

I used a sentinel controller, so it pretty much started pumping/fixing the c02 levels as soon as the lights turned on~

made things easy peasy for c02 control

I have a chhc-4, They even re-calibrated it for me once. good stuff

 

[Impman]

Thanks for the reply. This is common knowledge. My question is concerning the ppms of 1400 to 1600. Outside plants only see about 600. I know that anything over 850 at night stuns growth and causes chlorosis of the leaves. . How do iregulate these ppms at night.

I have a 4 inch exhaust running all night..

sounds impossible. how are you testing your CO2? re-calibrate, check your propane for leaks. But even then, your fan should clear the room out instantly.

 

[DLOPEZ1420]

[QUOTE
sounds impossible. how are you testing your CO2? re-calibrate, check your propane for leaks. But even then, your fan should clear the room out instantly.[/QUOTE]

Im running a titan atlas 3 to monitor and control.

Ive calibrated 5 times.
Its working correctly.

Ive dunked all my tanks and no leaks.

 

[DLOPEZ1420]

Glad it was helpful But always continue your own research, and experiment too~ Thats how I came up with my findings, never just take someone else word as the final say

I used a sentinel controller, so it pretty much started pumping/fixing the c02 levels as soon as the lights turned on~

made things easy peasy for c02 control

What ppms are running throurghout the day? Im running 1200.