CO2 enriched grow HELP!!

ligrow · Mar 27, 2017

polishpollack said:
your ec might be a little high. the co2 wouldn't stun plants. you don't need to run it all the time, just when lights are on.

at this stage I usually have [email protected]
I heard we have to push nutes when using CO2 that why I go higher
guess thats unnecessary...

I dont run CO2 all the time, I set it on the controller only kick it when lights on.
I dont have exhaust for the room, I realized co2 go up in dark period also.
Is that co2 made by plants? high level of co2 in dark dont hurt plants right?`

SheepsBlood said:
I agree with everything Polishpollack has stated.

My EC
Early Veg 0.5 EC
Mid-Late Veg 0.8
Early Flower 0.8
Mid Flower 0.9
Late Flower 0.5

My Nutes:

Jacks Professional 5-12-26 (3g/Gal)
Jacks Cal-Nit 15-0-0 (2g/Gal)
Epsom Salt (1g/Gal)
Canna PK 13/14

Microbe Life Photosynthesis Plus (Veg thru Flower) (This stuff smells worse than a rotting corpse)
Advanced Nutrients Golden Goddess (Veg thru Flower)
Advanced Nutrients PH Down 0-44-0 (love this stuff. 10ml / 55 Gal drops my PH 0.3-0.4 PH)
Chitosan (Flower only)

Foliar:
Humboldt County's Own Snow Storm 1ml /Gal and 2ml /gal in the last week. Twice a week
(If you can't get Snow Storm, CannaBoost will work the same for Foliar)

are they in soil?
Its jacks also powder nutes?

I use GH maxi for base nutes.

botanicare cal/mag (veg to two weeks before harvest)
Koolbloom powder (when flowering)
seaweed product (veg to two weeks before harvest)
hydroguard

polishpollack said:
Sheeps, are you hydro? That NPK ratio is Jack's hydro.
http://www.jrpeters.com/products_/16491/19322-jack-s/19712-5-12-26-hydroponic.html

ligrow, what soil are you using? I'm assuming you're using soil, not hydro.

They are in ebb bucket system with hydroton. :lol:

SheepsBlood · Mar 27, 2017

I also do Ebb n Gro buckets.
2 55 gal drums, 2 1/10hp chillers, and lots of buckets (obviously not saying how many)
4000 watt in Flower under XXL reflectors. Veg is 1000 watt parabolic

polishpollack · Mar 27, 2017

ligrow, that's quite a bit. be careful how much of that stuff you give them.
sheeps, nice set up, rock n roll.

ligrow · Mar 28, 2017

SheepsBlood said:
I also do Ebb n Gro buckets.
2 55 gal drums, 2 1/10hp chillers, and lots of buckets (obviously not saying how many)
4000 watt in Flower under XXL reflectors. Veg is 1000 watt parabolic

cool! sounds you rock n roll already!
I have 40 gal res, and Im using 1/2hp chiller.

What do you do to clean you system between runs?
I use bleach flush my system without growing medium.
Plants still got suffer by bleach, so I wonder how to do for clean up the system.

polishpollack said:
ligrow, that's quite a bit. be careful how much of that stuff you give them.
sheeps, nice set up, rock n roll.

got you bro! I will see how plants do carefully.

ligrow · Mar 28, 2017

then...today I check out my grow, I see their leaves are look back to green.
my co2 level its between 350-600ppm.
but I fucked up the timer when I change out MH bulb to HPS. thats about two weeks after flip.
so they have been in 24hrs on for more than a week.
I reset the timer put a back on again to 12/12.
does that have any harm for plant?

have some pics what they look right now...
have no experienced fuck up that this.
I should count flip date today right?

since plants are fine right now, should I higher co2 to 1000-1200ppm?

polishpollack · Mar 28, 2017

you need something that kills algae but you can still grow plants.

ligrow · Mar 28, 2017

polishpollack said:
you need something that kills algae but you can still grow plants.

wahts that?

polishpollack · Mar 28, 2017

some people use peroxide in small amount, like 35% food grade peroxide at 2 mls per gallon. not sure if this works well. you can ask at a hydro shop or research online.

ligrow · Mar 29, 2017

polishpollack said:
some people use peroxide in small amount, like 35% food grade peroxide at 2 mls per gallon. not sure if this works well. you can ask at a hydro shop or research online.

I do use peroxide when I see root issue.
How much amount you usually use with per gallon water?

If not having any root issue, I usually just use hydroguard to keep the root healthy.
Do you use it from start to finished?

polishpollack · Mar 29, 2017

don't know, just use your best judgment.

chemphlegm · Mar 29, 2017

ligrow said:
but I fucked up the timer when I change out MH bulb to HPS. thats about two weeks after flip.
so they have been in 24hrs on for more than a week.
I reset the timer put a back on again to 12/12.
does that have any harm for plant?
?

ligrow · Mar 29, 2017

Here is my another room.
I veg them without adding co2
They were doing fine.

They are about to flip so I try to add some co2 by running burner
650-1150ppm
Plants starts showing sign of def.
Man...what the fuck I missed??

Anyone pls help!!!

polishpollack · Mar 30, 2017

is the grow space too warm? looks a little like heat damage.

Dr. Who · Mar 30, 2017

NaturalFarmer said:
Wouldn't adding CO2 decrease your veg time? and thus increase your yield?

NO! The use of Co2 in veg is not worth the cost to return!

Dr. Who · Mar 30, 2017

SheepsBlood said:
yes, it can decrease veg time and increase end yield. Just make sure your roots are keeping up. I do hydro so I can check that out.
If someone says no it can't, then forget about it... I run CO2. I know.
CO2 is great stuff. I run at 1000-1200 ppm. 1500 ppm is a myth.
Actually I am at 400 ft altitude and grow in a basement. My starting PPM is 500. Basements usually have more since CO2 falls to the lowest point.

WHAT? Even Rosenthal says no gas in veg in all his books.....right along with everyone else.....

Lets just say I strongly disagreeing with you on gassing in veg.....I've tried it on several scales.....NOT worth the cost vs. the return!

I quit gassing about 6 years ago.....I find that with proper feeding and environment.....I can do everything I want with out the added pain in the ass.

High temps, High RH, Fast radical temp/rh changes for lights off..Increased uptake and all that goes with that...expensive controllers and monitors.....I got tired of it.....unless you run a "small" area...it's a waste.....

1500 is a myth - basically!

800-900 is pretty good, and should be the average Joe's range..

1250-1300 is the real ceiling. You better be pretty good to use that....Takes work, but can be rewarded.....Better have lots of light!

It does work - I just don't like it anymore.....I can do what I want without it!

NaturalFarmer · Mar 30, 2017

Dr. Who said:
NO! The use of Co2 in veg is not worth the cost to return!

Photosynthetic response of Cannabis sativa L. to variations in photosynthetic photon flux densities, temperature and CO2 conditions

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3550641/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3550641/pdf/12298_2008_Article_27.pdf

"Elevated CO2 concentration (750 μmol mol−1) suppressed E and gs ∼ 29% and 42% respectively, and stimulated PN, WUE and Ci by 50 %, 111 % and 115 % respectively as compared to ambient CO2 concentration. The study reveals that this species can be efficiently cultivated in the range of 25 to 30 °C and ∼1500 μmol m−2s−1 PPFD. Furthermore, higher PN, WUE and nearly constant Ci/Ca ratio under elevated CO2 concentrations in C. sativa, reflects its potential for better survival, growth and productivity in drier and CO2 rich environment. "

Do you think maybe CO2 enrichment didn't work well for you because you used 90 degrees and 85% RH as you stated in another thread? Both of which dramatically too high?

Dr. Who · Mar 30, 2017

NaturalFarmer said:
Photosynthetic response of Cannabis sativa L. to variations in photosynthetic photon flux densities, temperature and CO2 conditions

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3550641/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3550641/pdf/12298_2008_Article_27.pdf

"Elevated CO2 concentration (750 μmol mol−1) suppressed E and gs ∼ 29% and 42% respectively, and stimulated PN, WUE and Ci by 50 %, 111 % and 115 % respectively as compared to ambient CO2 concentration. The study reveals that this species can be efficiently cultivated in the range of 25 to 30 °C and ∼1500 μmol m−2s−1 PPFD. Furthermore, higher PN, WUE and nearly constant Ci/Ca ratio under elevated CO2 concentrations in C. sativa, reflects its potential for better survival, growth and productivity in drier and CO2 rich environment. "

Do you think maybe CO2 enrichment didn't work well for you because you used 90 degrees and 85% RH as you stated in another thread? Both of which dramatically too high?

In veg? I never got results I could justify in veg...

In bloom? Ran 1300ppm at 88-91F and the exhaust/cooling, was set for RH at about 81%....Have to say that did work well. It followed Ed R's outlines....basically.

It is outlined that increased temps and RH make high ppm's function better......Check Google for that.

In the end. I'm happy not using gassing.....I get everything I need - result wise.....The increase in transpiration will increase the need and frequency of exhausting to hold lower RH values.....these tend to defeat the purpose and increase the cost of gassing...
don't you think?

chemphlegm · Mar 30, 2017

NaturalFarmer said:
Photosynthetic response of Cannabis sativa L. to variations in photosynthetic photon flux densities, temperature and CO2 conditions

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3550641/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3550641/pdf/12298_2008_Article_27.pdf

"Elevated CO2 concentration (750 μmol mol−1) suppressed E and gs ∼ 29% and 42% respectively, and stimulated PN, WUE and Ci by 50 %, 111 % and 115 % respectively as compared to ambient CO2 concentration. The study reveals that this species can be efficiently cultivated in the range of 25 to 30 °C and ∼1500 μmol m−2s−1 PPFD. Furthermore, higher PN, WUE and nearly constant Ci/Ca ratio under elevated CO2 concentrations in C. sativa, reflects its potential for better survival, growth and productivity in drier and CO2 rich environment. "

Do you think maybe CO2 enrichment didn't work well for you because you used 90 degrees and 85% RH as you stated in another thread? Both of which dramatically too high?

90 is pretty high, I saw 130 in my augmented greenhouse a couple years ago and girls were fine, but the hothouse without the c02 and plants were suffering. 81RH scares the chit out of me. I never heard of purposely humidifying a flower room to achieve this, but I'm sheltered mostly....

ligrow · Mar 31, 2017

Dr. Who said:
WHAT? Even Rosenthal says no gas in veg in all his books.....right along with everyone else.....

Lets just say I strongly disagreeing with you on gassing in veg.....I've tried it on several scales.....NOT worth the cost vs. the return!

I quit gassing about 6 years ago.....I find that with proper feeding and environment.....I can do everything I want with out the added pain in the ass.

High temps, High RH, Fast radical temp/rh changes for lights off..Increased uptake and all that goes with that...expensive controllers and monitors.....I got tired of it.....unless you run a "small" area...it's a waste.....

1500 is a myth - basically!

800-900 is pretty good, and should be the average Joe's range..

1250-1300 is the real ceiling. You better be pretty good to use that....Takes work, but can be rewarded.....Better have lots of light!

It does work - I just don't like it anymore.....I can do what I want without it!

@Dr. Who when do you start adding co2 when bloom?
I wonder if plants are ok to take high level of co2 like 800-900 when transit.

sounds like you have exhuast for the room, but I dont...
do you think there is anyway to room grow room with co2 without exhaust for the room?
like keep co2 running on the lowest point when veg and last of two weeks of bloom?

chemphlegm · Mar 31, 2017

I run a sealed rooms, c02 is used full time in flower regardless of their age. I keep a perpetual system going so some are switched today and some harvested too.
scrubbers, air conditioning, and a dehumidifier is necessary, without those, all would fail, with or without c02. With c02 though, they cost more to operate.

CO2 enriched grow HELP!!

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