Adding C02 and having problems

!CORAL!REEFER!

Active Member
Hey everyone I’ve recently added C02 supplementation and now all my plants are looking sick. 20lb Co2 tank ran out in 3 days in a pretty sealed grow room.

I’m in Veg and need to flip to 12/12 asap.

I got the Autopilot C02 controller with sensor in middle of the room set to 800ppm. It’s been 4 days and now sign of them getting better.

Has anyone else had this kind of problem before?
 

Herb & Suds

Well-Known Member
Adding co2 isn’t constant otherwise what are you using to regulate it
What stage flower or veg ?
What medium ?
What lights can you exchange air at will?
Are you an established indoor grower ?
Kinda limited info but unless you have a huge room you are wasting co2 or should have bought a burner
 

!CORAL!REEFER!

Active Member
Adding co2 isn’t constant otherwise what are you using to regulate it
What stage flower or veg ?
What medium ?
What lights can you exchange air at will?
Are you an established indoor grower ?
Kinda limited info but unless you have a huge room you are wasting co2 or should have bought a burner
I have a regulator set up with it.
I’m in week 6 of veg.
Coco coir
Gavita 1700’s led
I can exchange air
I’m pretty established indoor just new to C02 in a can.
10x14 room
 

DoubleAtotheRON

Well-Known Member
I highly doubt that adding CO2 is your problem.. it's something else stressing them... heat, light, low humidity, etc. They curl up like that when they transpire too fast. Looks pretty hot on the N as well.
 

DoubleAtotheRON

Well-Known Member
maybe but should temps with C02 be in the mid 80’s? My humidity has been around 60%
That's pretty close to VPD. 83 degrees/63% is ideal. I have experimented with alot, and I find the 20 point difference in the temps and RH are ideal.. i.e. 80/60, 85/65.. and then (if you don't have an air scrubber) start tapering the RH back to avoid mold till finish. (this is in flower by the way, veg is different)
 

Boatguy

Well-Known Member
Not venting anything out, but I was using a window unit AC?
Most window ac's just recirculate the air in the room for efficiency. If you have that style, it would not explain where your co2 was going.
A normal window ac is basically the same as a minisplit. Condenser outside, cold air inside
 
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