too much co2? - Cannabis Botany and Advanced Growing Science - International Cannagraphic Magazine Forums

phatsesh · 05-23-2011, 06:34 PM

im looking for pics over co2 poisoning in plants.

i would really appreciate it if somebody had some and symptoms too look for.

LittleAmsterdam · 06-07-2011, 01:39 PM

They won't burn right away, but 24hr later the edges of the leaves will die first then the rest of the leaf. It looks like too much heat.

CO2 is NO JOKE ! and must be controlled to protect your health and the health of your crop.

phatsesh · 06-09-2011, 04:21 PM

Thank you, that's what I see. I was getting my tank dialed in and a hose fell off the fan and I saw some damage I haven't seen before isolated to under the fan not much but noticeable. I will also mention that I saw what I believe to be damaged or bruised stomata which turned into dry spots. Fixed the hose and the problem seems to have disappeared. Growth seems stunted but catching up.

tester · 06-09-2011, 10:33 PM

https://www.icmag.com/ic/showthread.php?t=51779

06-18-2011, 08:12 PM

Hey guys,m at what concentration is it too much? 1500 is ideal correct? So how big is the window before we start poisoning our girls?

Cali C.C.K. · 06-18-2011, 08:21 PM

I run co2 at 1200 ppm

Cali C.C.K. · 06-18-2011, 08:27 PM

Anything over 1200 ppm will give you nugs that shatter when you try to break them apart, 1200 will give you nice spongy dense nugs.

spurr · 06-18-2011, 08:42 PM

Do not use over 1,000 ppm for best results; ~700-1,000 ppm is ideal. There is a good thread in this sub-forum where I posted much info, please see that thread.

Also, to get the 'most' out of Co2, try to have a NO3:NH4 ratio < 15 and > 8; I am using 13 at this time. It has been that found some species of plants and trees, that have increased rate of photosynthesis due to increased Co2 (ex., from a Co2 burner), will not (can not) keep up the heightened rate of photosynthesis from high Co2 after many days/weeks, or longer. Basically, it has been found that a few species of plants were given only NO3, and were grown under increased Co2, the plants to loose much of the benefit from Co2 after a few days/weeks after they started getting only NO3. However, plants given only NH4 and those given a NO3:NH4 ratio that was fairly low, continued to benefit from increased Co2 over time. It is thought, due to a few studies, plants that take up NH4 are better able to 'use' increased Co2 for better growth and rate of photosynthesis, over a longer time period, than those that get only NO3.

It's a total myth that 1,500 ppm is ideal, it's just flat wrong based upon hearsay and conjecture, not science.

spurr · 06-18-2011, 08:44 PM

Tester,

Thanks for that pic.

phatsesh · 06-30-2011, 04:17 PM

Spur can you put a link to the thread?

05-23-2011, 06:34 PM	#1
phatsesh Member Join Date: Aug 2009 Posts: 77	too much co2? im looking for pics over co2 poisoning in plants. i would really appreciate it if somebody had some and symptoms too look for.
	Quote

06-07-2011, 01:39 PM	#2
LittleAmsterdam Lat. 31.50 Long. -99.40 Join Date: Jul 2010 Posts: 475	They won't burn right away, but 24hr later the edges of the leaves will die first then the rest of the leaf. It looks like too much heat. CO2 is NO JOKE ! and must be controlled to protect your health and the health of your crop.
	Quote

06-09-2011, 04:21 PM	#3
phatsesh Member Join Date: Aug 2009 Posts: 77	Thank you, that's what I see. I was getting my tank dialed in and a hose fell off the fan and I saw some damage I haven't seen before isolated to under the fan not much but noticeable. I will also mention that I saw what I believe to be damaged or bruised stomata which turned into dry spots. Fixed the hose and the problem seems to have disappeared. Growth seems stunted but catching up.
	Quote

06-09-2011, 10:33 PM	#4
tester Member Join Date: Dec 2007 Posts: 284	https://www.icmag.com/ic/showthread.php?t=51779
	Quote 4 members found this post helpful.

06-18-2011, 08:12 PM	#5
masterchef Guest Posts: n/a	Hey guys,m at what concentration is it too much? 1500 is ideal correct? So how big is the window before we start poisoning our girls?
	Quote

06-18-2011, 08:21 PM	#6
Cali C.C.K. New Member Join Date: Jun 2011 Location: SDCA Posts: 17	I run co2 at 1200 ppm
	Quote

06-18-2011, 08:27 PM	#7
Cali C.C.K. New Member Join Date: Jun 2011 Location: SDCA Posts: 17	Anything over 1200 ppm will give you nugs that shatter when you try to break them apart, 1200 will give you nice spongy dense nugs.
	Quote

06-18-2011, 08:42 PM	#8
spurr Banned Join Date: Aug 2010 Location: https://www.scirus.com/ & https://www.google.com/schhp?hl=en Posts: 2,431	Do not use over 1,000 ppm for best results; ~700-1,000 ppm is ideal. There is a good thread in this sub-forum where I posted much info, please see that thread. Also, to get the 'most' out of Co2, try to have a NO3:NH4 ratio < 15 and > 8; I am using 13 at this time. It has been that found some species of plants and trees, that have increased rate of photosynthesis due to increased Co2 (ex., from a Co2 burner), will not (can not) keep up the heightened rate of photosynthesis from high Co2 after many days/weeks, or longer. Basically, it has been found that a few species of plants were given only NO3, and were grown under increased Co2, the plants to loose much of the benefit from Co2 after a few days/weeks after they started getting only NO3. However, plants given only NH4 and those given a NO3:NH4 ratio that was fairly low, continued to benefit from increased Co2 over time. It is thought, due to a few studies, plants that take up NH4 are better able to 'use' increased Co2 for better growth and rate of photosynthesis, over a longer time period, than those that get only NO3. It's a total myth that 1,500 ppm is ideal, it's just flat wrong based upon hearsay and conjecture, not science. Last edited by spurr; 06-18-2011 at 08:51 PM.. Reason: mroe info
	Quote 1 members found this post helpful.

06-18-2011, 08:44 PM	#9
spurr Banned Join Date: Aug 2010 Location: https://www.scirus.com/ & https://www.google.com/schhp?hl=en Posts: 2,431	Tester, Thanks for that pic.
	Quote

06-30-2011, 04:17 PM	#10
phatsesh Member Join Date: Aug 2009 Posts: 77	Spur can you put a link to the thread?
	Quote