<P>So you have a 12x8x8 building insulated with a/c and a big carbon filter with large intake/exhaust fan. Thing is with 39 vegging plants how much fresh air do you really and I mean really need??? I have not been running the filter/intake so not much fresh air lately but the plants do very very well and I mean rapid growth. So what is the deal since like I said no real outside air??? Am I missing something. They are in hydro tub with two air stones and under 8x4' HO flours. at 500 ppm. Thanks for any knowledge...</P>
co2, air, How much really?
- Thread starter Talisman
- Start date
Green Cross
Well-Known Member
You don't really need additional C02, but a fan that circulates air around the garden is a good idea. It helps increase Co2 respiration, but your A/C probably keeps the air moving enough. Optimal temperatures are much more important that Co2 enhancement.
And you really only need enough air exchange so that the humidity doesn't get much above 65%.
The bigger air conditioners drip out the back, removing moisture from your room. The newer smaller ones use the extra moisture to help cool the unit.
Thats cool, Not so sure what to think about air exchange though once 50 plants are in full bloom? Anyway fan is there, a/c is working, portable, and not much else to say but the idea is 2 to 3 air replacements per minute but I don't seem to have to do that for great, well at least veg, growth. ????
rbahadosingh
Well-Known Member
i dont totally agree with this. While optimal temperatures are VERY important. I dont think that optimal temperatures w/out co2 would be better than growing w/ co2.
ROBINBANKS
New Member
Good info.