CO2 buildup at night in sealed room cause fox tailing?

N

nxsov180db

Well-Known Member
I know CO2 can cause fox tailing, and I've been turning it down to 800 the last few weeks but after week 6-7 everything starts fox tailing. My lights off CO2 gets pretty high tho, tonight it was 1300 after an hour of dark, it'll get to 2000 before the lights go on again, I just assumed this happens for everyone in a sealed environment, should I be venting the room at night, can night CO2 levels cause foxtails?
 
N

nxsov180db

Well-Known Member
Yeah I know what can cause fox tailing, I guess I should have gave a little more background, lights have been turned down as well as temps, N is low also. I run 6-8 strains at a time and they all do it, Oreos definitely shouldn't be doing it.
 
Billy the Mountain

Billy the Mountain

Well-Known Member
nxsov180db said:
I know CO2 can cause fox tailing, and I've been turning it down to 800 the last few weeks but after week 6-7 everything starts fox tailing. My lights off CO2 gets pretty high tho, tonight it was 1300 after an hour of dark, it'll get to 2000 before the lights go on again, I just assumed this happens for everyone in a sealed environment, should I be venting the room at night, can night CO2 levels cause foxtails?
Click to expand...
I've not read that, do you have a source?

Why is CO2 rising so dramatically during the dark period? Respiration does release CO2 during the dark period but it alone wouldn't elevate to those levels. Is your CO2 controller off at night?

I'm genuinely curious because I run CO2, all data gets logged, and I've never seen any rise in CO2 at night.
 
N

nxsov180db

Well-Known Member
Billy the Mountain said:
I've not read that, do you have a source?

Why is CO2 rising so dramatically during the dark period? Respiration does release CO2 during the dark period but it alone wouldn't elevate to those levels. Is your CO2 controller off at night?

I'm genuinely curious because I run CO2, all data gets logged, and I've never seen any rise in CO2 at night.
Click to expand...
Sorry I don't have a source about co2 itself causing foxtails, I've just heard it mentioned a bunch of times by other growers. It's a well sealed room stuffed with plants, you think the co2 shouldn't really rise much still?
 
thumper60

thumper60

Well-Known Member
nxsov180db said:
I know CO2 can cause fox tailing, and I've been turning it down to 800 the last few weeks but after week 6-7 everything starts fox tailing. My lights off CO2 gets pretty high tho, tonight it was 1300 after an hour of dark, it'll get to 2000 before the lights go on again, I just assumed this happens for everyone in a sealed environment, should I be venting the room at night, can night CO2 levels cause foxtails?
Click to expand...
Iam scratching my head you pump co2 all night? you should be venting or at least shut down the co2. Also to much co2 late in flower can slow down flowers from getting ripe.
 
N

nxsov180db

Well-Known Member
thumper60 said:
Iam scratching my head you pump co2 all night? you should be venting or at least shut down the co2. Also to much co2 late in flower can slow down flowers from getting ripe.
Click to expand...
No, the co2 is on a controller with photosensor, so at lights off it stops, but it'll continue to buildup during the dark hours, I know they give off co2 during lights off so I assume that's why I get the co2 build up.
 
P

Phytoplankton

Well-Known Member
I can't find anything that says CO2 contributes to foxtailing. It's usually a stress response (heat or light intensity), sometimes it's genetic. Now you do run hotter temps and more intense light in CO2 grows, but I dont think that CO2 is the cause, it's the conditions you grow in when using CO2..
 
Daino

Daino

Well-Known Member
Why are you running co2 in the dark period anyway they only use that shit when lights are on co2 has no benefit in the dark cycle same reason the plants don't really take up any nutrients any energy or use of anything beneficial happen when lights are on all of the energy taken in from the leaves and co2 is then stored and used in the dark period hence buds getting bigger at night it doesn't grow in the day period its the night period so if I were you I would save my co2 and put the while system on a timer to only send out co2 during lights on so it can actually get the use out of it rather than wasting it hope this helps good luck
 
Daino

Daino

Well-Known Member
That's why your levels are rising so much at dark period because the plant needs light and co2 to photosynthesise together no point running one without the other like trying to use your TV remote with no batteries in it m8 pointless
 
N

nxsov180db

Well-Known Member
Daino said:
That's why your levels are rising so much at dark period because the plant needs light and co2 to photosynthesise together no point running one without the other like trying to use your TV remote with no batteries in it m8 pointless
Click to expand...
Thanks but I do not run co2 during the dark period.
 
Daino

Daino

Well-Known Member
What have you been turning down to 800?? Sorry I must have misread something somewhere
 
Daino

Daino

Well-Known Member
Ah sorry I see it now sorry I missed that message, yeah everything is reversed at night the plants take in oxygen and release co2 instead so that explains the build up but it's way way more than it should be that's weird and I hope you get to the bottom of it
 
Daino

Daino

Well-Known Member
Only thing I can think of is lower the intake on a speed controller set it too half the amount and run exaust at 100% see of that helps but now thinking aren't you running a sealed room if so thus lies the problem maybe not enough air- exchange
 
N

nxsov180db

Well-Known Member
Daino said:
What have you been turning down to 800?? Sorry I must have misread something somewhere
Click to expand...
Yeah, usually turn it down to 800 because that's what a few friends of mine do. They don't get as much buildup as I do however, but they're in a commercial setting and I have a room built out in a basement, so I probably have a lot more biomass per cubic foot of room space.
 
You must log in or register to reply here.
Top