During flower, co2 use

[faintfuzzies]

I have been using co2 just recently last crop, but I started it in 4th week of flower. My question is when should I start the co2 , from day one of flower, or should I wait til I see the flowers start to form in about 2 weeks from the day I did 12/12 cycle......

Thanks

Faint

 

[PuReKnOwLeDgE]

Use it the whole time.

 

[Floridian]

Yea,you dont want to miss out on that stretch having co2 enrichment.I never use it in veg but use throughout flower.Its less important the last couple weeks of 12/12 as compared to the first couple weeks.I have my temps around 85F ambient temps the first 30 days,the last few weeks I'll drop temps to 75 or so.