Correct me if I'm wrong, but don't the plants use O2 in the dark and co2 during the light? Why are you adding o2 during the light cycle? Shouldn't it be co2 during light and o2 during dark? I'm very interested in seeing if it does anything as your doing it...subbed!

I've messed with co2 a little, but have a grow bro that uses it extensively...we have been wondering about this 02 during dark, but keep in mind an o2 charged atmosphere is VERY dangerous...things that wouldn't normally burn, will burn very quickly in an o2 enriched environment! Be safe about it!!!