which is better? 24/0 or 18/6 lights

[Weezard]

Dear Grey1223, syde00, LordDrow, etal;

Durring the lights on photoperiod yours plants run mostly on CO2. It is why some people supplement it to thier grows. BUT when the lights go out and your plants are in the dark or night photoperiod thier respiration reverses and they start using oxygen and putting out CO2.

This is why the ambient CO2 levels are higher at night then during ther day.
(this is the main reason people say they sleep so well when they visit "the country" in the summer. They usually say "the fresh air makes me sleep so good", in reality it's the higher levels of CO2 at night doing it)

Maybe you've noticed that the grow smell in a bloom room is usually worst about 1/2hr to 1hr after your lights come on, that's because your plants had a little extra CO2 to work with from the dark period.

See, get to learn something new every day. Your all welcome.

I quoted the whole enchilada, 'cause it bears repeating.
If yer gonna,:weedpoke:, Ya need, to read.
That, or ask an old fart who reads :greenthumb:

Respect.
Weeze