CO2 questions

fridayfishfry

Well-Known Member
I'm stepping it up with adding CO2

I'm looking to keep it timed not automatically controlled
I think I have the actual PPM/CUFT/lb math figured out just not what the plants will eat up

plan:
intake / exhaust to outside 15min on / 2 hr off
400w air cooled
4x4 tent (105CUFT)

20# tank 1-15CUFT/hr regulator
set to 1minute on @ 6CUFT/hr after exhaust time
this brings it up to 1400ppm in theory

questions:
is CO2 worthwhile with a 400w intensity?
are higher temps required or is higher temp tolerated?

how fast will a flowering canopy eat through the extra CO2 in the air?
Maybe just run for 2 minutes when they're big?

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