Please help identify why plants stress
- Thread starter ligrow
- Start date
ligrow
Well-Known Member
Good day Slyone
Yeah I could be. Im not air cooling the lights. I already turn the light to 50% hope it dont get worst.
Appreciate for your feedback!
Alienwidow
Well-Known Member
Looks like the clones arent used to the environment. Hydro babies should be way bushier at that point.
coreywebster
Well-Known Member
Just a thought and I could be way off. What level of co2 are they getting and do you turn it off when its the plants night time. How much area are you covering with those lights? Do you have good air circulation within the tent?
ligrow
Well-Known Member
They were in DWC. Root was good. I seldom have root white like that in summer if not using chiller.
but I moved them out the the tent for three days. They were not getting lights and not pump for air for three days.
but when I transplant to ebb system. Im sure they were healthy.
When you mentioned they arent used to the environment.Im thinking maybe its big swing of RH cause this problem.
my controller read 40% lowest and 77% highest. those clones were growing in vent tent. Im in high RH area. so they were getting 65-80% most of time.
As I mentioned above. this is my first time runing sealed environment with co2 burning. controller set 1200ppm. dead band 50ppm.
When burner shut off. ppm still raise few hundred. maybe too high ppm those small plants?
appreciate for your feedback.
have a nice weekend
ligrow
Well-Known Member
Yes co2 level sure bother me. first time using controller. ppm level gets higher than I expect. burner cut off at night. but when I checked co2 level during lights off. still over 1200ppm. so last night I cut off co2. right now its 600ppm. but Im using mini split. worry about no air exchange could be a problem?
400+600watt for 10*5 tent. temporary setup just for this week. waiting for cob panels arrived. It will be three panel with 6pcs cobs on each one.
This is a thread about my current setup. Just have a finished two days ago. maybe something wrong with my setup cause this problem?
https://www.rollitup.org/t/co2-burner-with-grow-tent-setup-advice.913270/page-2#post-12744804
Really do appreciate your feedback
have a nice weekend~
coreywebster
Well-Known Member
I just found your other thread with more info. Now don't take my word on it because I don't use co2 or a sealed room, so take what I say with a pinch of salt.
Could be too much, there are a few threads about which say 1500ppm is a waste or too much, those measurements are usually used in full flower. It seems its common to turn it off during lights out too. I have no idea how to go about this.
My best guess would be its too high ppm for such small plants, this is based on looking at other threads, I cant link them because they are from other sites. I came across one thread which a guy was trying to prove that 1500 was wasteful and that above that it can damage the plants, he was saying above 2000 it can kill them. The one picture I found on that thread showed a plant in a further state of decay than yours but it did have similarities.
The thread I came across was called " don't use 1500ppm"
There is another thread which contradicts this by Dr Who, now that maybe the same doctor who that is on here so maybe worth shouting him out. If it is he seems to have written a great deal on co2 and would be a good source of info.
Like I say, not a user of co2 so don't take advice off me but use it to do more research. Goggle co2 lights off and best ppm for small plants.
@Dr. Who Is that you who wrote the article on co2? You may tell me to keep my mouth shut on things I don't have experience with, that's fair enough, but if it helps the OP solve the problem...
good luck finding the source of your problem ligrow
Edit, since they use oxygen in the night period maybe that is causing or contributing to the problem. sorry I cant give a definite answer. At least it gives you a few things to research
Could be too much, there are a few threads about which say 1500ppm is a waste or too much, those measurements are usually used in full flower. It seems its common to turn it off during lights out too. I have no idea how to go about this.
My best guess would be its too high ppm for such small plants, this is based on looking at other threads, I cant link them because they are from other sites. I came across one thread which a guy was trying to prove that 1500 was wasteful and that above that it can damage the plants, he was saying above 2000 it can kill them. The one picture I found on that thread showed a plant in a further state of decay than yours but it did have similarities.
The thread I came across was called " don't use 1500ppm"
There is another thread which contradicts this by Dr Who, now that maybe the same doctor who that is on here so maybe worth shouting him out. If it is he seems to have written a great deal on co2 and would be a good source of info.
Like I say, not a user of co2 so don't take advice off me but use it to do more research. Goggle co2 lights off and best ppm for small plants.
@Dr. Who Is that you who wrote the article on co2? You may tell me to keep my mouth shut on things I don't have experience with, that's fair enough, but if it helps the OP solve the problem...
good luck finding the source of your problem ligrow
Edit, since they use oxygen in the night period maybe that is causing or contributing to the problem. sorry I cant give a definite answer. At least it gives you a few things to research
ligrow
Well-Known Member
Im using 6' exhaust its already in full speed. when cut off co2 in sealed room. I worry I about no air exchange would be a problem?
coreywebster
Well-Known Member
@bottletoke can you throw some knowledge at the OP
ligrow
Well-Known Member
https://www.rollitup.org/t/co2-burner-with-grow-tent-setup-advice.913270/page-2#post-12744804
this is a thread have more detail for my setup...
oh man first time running co2... only one night plants be like this...
so i just cut off co2 with a/c on without air exchange wont be a problem?
slyone
Well-Known Member
I agree with the other posters. Back off completely with the CO2 for the time being until they recover. To recover it could take a day or a week, depends on the girls. As for CO2 when you do re-introduce it, start slowly and then work your way up. Now, I do not use CO2 so have no experience with it but I have read in numerous posts over time that 1500ppm would be your upper most limit but I have always erred on the side of caution when it comes to adding anything including nutes, less is more as the general rule is applied. Start back to basics as you would normally grow, then add the rest slowly and little bits at a time. Sorry I could not be more specific but I would suspect the CO2 so early on is your problem and when using CO2 I have often read that you need higher heat and temps for it to be effective... Good luck but back to basics would be my advice and work up from there...??
ligrow
Well-Known Member
Yes, I did cut co2 when I saw they showing sign of stress.
This is my first time using mini spilt and burner.
Im just not sure with mini spilt running in a sealed room, no exhaust in the room no air exchange would be ok?
I only grow in vent style and window A/C. Want to make sure if not running CO2 with mini spilt running without any exhasut would be fine.
Two days after I cut Co2. They are not showing sign of recover yet
This is my first time using mini spilt and burner.
Im just not sure with mini spilt running in a sealed room, no exhaust in the room no air exchange would be ok?
I only grow in vent style and window A/C. Want to make sure if not running CO2 with mini spilt running without any exhasut would be fine.
Two days after I cut Co2. They are not showing sign of recover yet
coreywebster
Well-Known Member
yeah, I understand your concern there, I just did a bit more googling, came across a few good reads.
I cant link them they are from other sites, as far as I know I'm not allowed.
this was my search terms using google. "running co2 in a sealed room do i need oxygen"
the first one is from thcfarmer and is called "oxygen depletion in sealed room"
the second icmag and called "Lack of oxygen in sealed room"
If you have cut off all co2 in a totally sealed room then they could get worse.
According to Dr Who's article on the weed blog plants must have minimum 250ppm and in normal air we breath levels are around 350ppm. So can you use your burner to a range of 500-600ppm? Seems to me you were using far too much but you cant afford to have non in a sealed room.
Use my google search terms and read those two threads
then google this "co2 levels for small plants in sealed room" and look for the theweedblog
good luck ligrow
I cant link them they are from other sites, as far as I know I'm not allowed.
this was my search terms using google. "running co2 in a sealed room do i need oxygen"
the first one is from thcfarmer and is called "oxygen depletion in sealed room"
the second icmag and called "Lack of oxygen in sealed room"
If you have cut off all co2 in a totally sealed room then they could get worse.
According to Dr Who's article on the weed blog plants must have minimum 250ppm and in normal air we breath levels are around 350ppm. So can you use your burner to a range of 500-600ppm? Seems to me you were using far too much but you cant afford to have non in a sealed room.
Use my google search terms and read those two threads
then google this "co2 levels for small plants in sealed room" and look for the theweedblog
good luck ligrow
ligrow
Well-Known Member
Appreciate that man!
I sure go check that out right now. thanks for the direction
I cut co2 for two days. also have the door opened that fresh air come in when I shut off burner.
I still have mini: 627ppm max: 1092ppm in the tent.