Co2 And Temp

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RooR5mm

RooR5mm

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Is it a waste to run co2 in a room that runs at 76-78f?
I like to be comfortable when working in the room so I never go over 78.
Co2 levels are currently @ 500 without enrichment.
 
1diesel1

1diesel1

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No, not a waist. Is the room sealed? Are you running in veg? Are you running in flower? I’ve used it for years.
 
RooR5mm

RooR5mm

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2 20’-12.5’, 76F @ 60RH. Sealed flower rooms on a flip scrubbing into each other 24/7.

I will have to scrub each room individually if enriching I assume?

I can do that if need be, scrubbing back and forth just kills humidity spikes and makes it easier on my splits. But the downside is fresh co2 will now be circulating into the lights off room from the lights on room.
 
RooR5mm

RooR5mm

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No, not a waist. Is the room sealed? Are you running in veg? Are you running in flower? I’ve used it for years.
I’ve been repeatedly told you can go with higher temps using CO2. Im only wanting to max out at 78 due to an office off of the room with a fish tank that I don’t want to get over 80f in. I have a 5tons worth of water chilling and water cooled a/c capacity but I haven’t used it due to running coco. I’m not going to turn it on for a fish tank and I have a drop in self contained chiller that I don’t want to use permanently.
 
CaliRooted

CaliRooted

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There really isn't hard evidence yet that truly confirms hotter is better. I ran 83 max 1500ppm for years with great results, however I currently run 77-79 1100 ppm and my plants look alot happier I must say. Yes we've all read and been told you can run hotter I do believe that but if your environment isn't dialed in perfectly, there's little room for error imo.
 
RooR5mm

RooR5mm

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There really isn't hard evidence yet that truly confirms hotter is better. I ran 83 max 1500ppm for years with great results, however I currently run 77-79 1100 ppm and my plants look alot happier I must say. Yes we've all read and been told you can run hotter I do believe that but if your environment isn't dialed in perfectly, there's little room for error imo.
I’ve let my room run the 80s a few times without enriching and my plants didn’t like it. It wasn’t bad in hydro in the 80s with the water chilled. But running hand watered coco not so much.
 
P

PharmHand

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There really isn't hard evidence yet that truly confirms hotter is better. I ran 83 max 1500ppm for years with great results, however I currently run 77-79 1100 ppm and my plants look alot happier I must say. Yes we've all read and been told you can run hotter I do believe that but if your environment isn't dialed in perfectly, there's little room for error imo.
I’ve noticed the same thing. If you get those temps up into low 80’s and get your humidity into the 70’s early flower the growth is unreal but keep it there too long deficiencies appear. I think, as u said ,everything has to be PERFECT to maintain that metabolic rate. If you’re doing multi feeds daily and closely monitoring your root zone needs like in say wool or dwc it might be easier to maintain ideal conditions. I’m in 20gals coco so not really feasible for me. There’s a great old horticulture book called Secrets of High Yield Gardening ; in there it’s got a graph showing how as temperature increases in relation to humidity the plant metabolic rate/ growth speed up until it gets to about 85-86f then it quickly plateaus and drops off as it gets warmer. So anyhow it shows peak at 85-86 with co2 supplementation HOWEVER at peak it says that it’s “unpredictable/destructive growth”. It doesn’t elaborate too much on what he means by that but from what I see basically means deficiencies and tissue flaws since the plant just can’t keep up. The author goes on to recommend temperatures in the 75-79 range as safe and predictable. I can tell u for certain your quality will be better at the lower temps
 
1diesel1

1diesel1

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This grow was a completely sealed room (tuff shed post some time ago).
I kept the room at 75-78f flower week one to week 7. Fed co2 beginning of week one to week 7. Went through two 50 pound tanks flowers absorbed c02 heavily mainly weeks 3 and 5 and 7.
8F918CF6 A511 43FF B10E D5D1DD236202
89B13EF9 FF8A 4091 A954 7EF75423CBDC
A3B164F8 5356 479B 843B 5F16FD6D3B75
B573E0E9 2C68 4089 937A A7672DA88740
 
777F9D75 BBAA 4B53 8729 BEB07EF1594D
RooR5mm

RooR5mm

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I’d have to look at some graphs too. You guys are digging the 78 @1100 ppm? Wasteful to go higher than 1100 at that temp?
 
RooR5mm

RooR5mm

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I have water chilled co2 burners but without that chiller running they are useless. I could put the Mitsu-minis to bed and run the water cooled ac. The mitsus are just so quiet though.
 
CaliRooted

CaliRooted

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Honestly I have seen no difference between 1500 and 1100 ppm weight wise, so I stick with the 1100ppm. Yeah 78-79 is great I think.
 
RooR5mm

RooR5mm

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Honestly I have seen no difference between 1500 and 1100 ppm weight wise, so I stick with the 1100ppm. Yeah 78-79 is great I think.
BTW, I should probably stop scrubbing between the rooms and scrub each room individually?
 
RooR5mm

RooR5mm

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All rooms are connected? I do not trust those types of electronic devices to control my grow.
I’ve had these brains for 4 years without a hiccup minus fine tuning some of the programming. I haven’t checked out any of the latest greatest but these are diesel, Diesel.
 
1diesel1

1diesel1

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Better then what I got. I like your set up.
 
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