All Co2

[smokie927]

I have a lot of questions about co2. First off I want to discuss different temps when running co2, does lower temps being 60-70F Cause slowed growth of buds? I'm pretty experience when it comes to everything else except co2. I run my co2 at 1500 ppm and i'm into flower 2 weeks now,my buds seem to be not even close to the size without co2. Everything else is key RH(relative humidity)60-70, my temps are between 60-70F with a heater,very good air flow for transpiration and co2 distribution,nutes around 700ppm which is perfect for my strain,res change at 2 weeks,massive amounts of light, DWC, obviously something is missing. Anyone with input would help. Leagal grow,only way I'd have it.

 

[Jonus]

You should try to match the ppm of your co2 to the ppm of your nutrient for starters. Are you running a sealed grow room or are you using forced air extractions?

 

[Silky Shagsalot]

I have a lot of questions about co2. First off I want to discuss different temps when running co2, does lower temps being 60-70F Cause slowed growth of buds? I'm pretty experience when it comes to everything else except co2. I run my co2 at 1500 ppm and i'm into flower 2 weeks now,my buds seem to be not even close to the size without co2. Everything else is key RH(relative humidity)60-70, my temps are between 60-70F with a heater,very good air flow for transpiration and co2 distribution,nutes around 700ppm which is perfect for my strain,res change at 2 weeks,massive amounts of light, DWC, obviously something is missing. Anyone with input would help. Leagal grow,only way I'd have it.

at lower temps., co2 is a total waste of time/money. in order for plants to utilize higher co2 levels, the temps. need to be in the 80's. this causes the plants to open stomata wider. (do a search to get the optimal temps.) if your rh is 60-70 then you're asking for trouble. that's wayyyy too high for flower. pm is coming your way soon! if your room temps. are 70, what are your rez temps?

 

[smokie927]

For jonus: I have fresh air intake from outside through a 12 inch duct and plenum with a 10 inch vortex fan on that,then i have a 12 inch fan for my exhaust, it drops humidity and temp in 5-6 min max. I'll match my nutes and co2 ppm next time, for now I stopped co2, so i can vent more get my humidity down. Thanks a lot,much abliged. And oh ya... my room is totally sealed. Keep the posts coming.

 

[smokie927]

Silky: First off, thanks for the input that explains a lot,see i'm using compressed co2 controlled by my greenhouse controller, if anything it lowers the temps cause co2 is cold. My res. temp is between 50-60F it's on a concrete floor so it stays fairly cool. If you have input on res. temps,pros & cons i'd like to read it when you have time. Thanks a lot. And i'm going with a co2 generator next time let me know what u guys think.

 

[EsmeWeatherwax]

You should try a dehumidifier, get a 50 pint larger. It will lower your humidity and raise your temps at the same time. That way you can run your Co2 again and not have to run the exhaust as much. Also if you have air cooled lights you can install a speed controller on the blower and slow it down, this will make your lights run a little warmer which will raise the temp in your room.

 

[Silky Shagsalot]

60 degrees is a bit low for rez temp. mid 60's is good.

 

[Jonus]

For jonus: I have fresh air intake from outside through a 12 inch duct and plenum with a 10 inch vortex fan on that,then i have a 12 inch fan for my exhaust, it drops humidity and temp in 5-6 min max. I'll match my nutes and co2 ppm next time, for now I stopped co2, so i can vent more get my humidity down. Thanks a lot,much abliged. And oh ya... my room is totally sealed. Keep the posts coming.

Yup, too much co2 can have the same affect as too much nutrient. Leaves turn dark green and bud size suffers. The best advice I was ever given was to match the ppms as close as possible for both.

 

[smokie927]

esme: I have a intake fan and exhaust for my lights so I just turned off my intake,and got about 4 degrees on my heat, Thanks a bunch, every little bit is helping.

 

[smokie927]

Ya jonus, you hit the nail on the head,thats exactly whats going on here. It looks the same as the nute effect except the buds and plant isn't locked up thats why I got so confused. But this is first time with co2 so I knew thats what it had to be. Too much co2 and too low of temps. and a little too high RH. I'm so aggrivated I just hurt my yeild with this by 50 percent at the least.

 

[unity]

I think a sealed room is essential to running co2. This will require ac & dehumidifier. I think Jonus is giving great advice, just make sure you mention conversion table of your calculations i.e. .5,.64,.7.

To Esme: You can't run a dehumidifier without ac in a sealed space, the temps will get too high

Peace, Unity

 

[smokie927]

If anyone else has anything to add as for environment conditions when using co2 be my guest. And if your a the ommp then burn those chrons. I only smoke joints,it waste's a lot of smoke but it also taste's better.

 

[smokie927]

I have a 30 pint dehumidifier in my room but it's by my greenhouse controller which audimates everything basically, and the dry heat coming out the back causes my relay's to be out of wack so i shut it off to run my exhuast more. Next run i'll move the dehumidifier. My greenhouse controller has a co2 ppm meter on it and audimates the lvls no need for sq. footage calculations.

 

[smokie927]

Heres a tip for people not running co2, you need an intake right from outside, if your growing 12+ monster plants approx. your plants will eat up all the original co2 in your room and if your not in a city then co2 lvls are from 200-250 ppm, under 200ppm your plants cant photosynthicize. So you need to bring in fresh air every hour to hour and a half. It will raise you ppm to whatever lvl your ouside co2 is at. Also you want your lights on at night because at night co2 lvls are higher sometimes by 120 ppm. your plants as i'm sure everyone here knows only uses co2 during the lights on cycle. Boonies co2 lvls (200-250) at night (200-350), CITY co2 lvls (300-700) naturaly. People on OMMP Burn ThOsE ChRoNiCs. Smoke Joints.