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I feel like this thread never really got a good answer as there seems to be a confusion between Kush and Og Kush. Kush strains are 100% Indica thus landrace strains that had been bred for their specific environments. The smell of kush is always pungent. The smell is thick and it stays in the...

I use a 2 way AC split system that has intake to recirculate the air in the room and cool it down and dehumidify it at the same time. The way I do my room is that I seal it and run a continuous intake and exhaust system that exchanges the air in the room very slowly. I use a fan dimmer to...

To ventilate or Not to ventilate? Many argue that there is no need to ventilate a sealed grow room environment because you can simply supplement CO2 and scrub the air with a carbon filter. They say it's a waste of money to let excess CO2 escape and that there is no benefit in doing this. Then I...

Found a good article that explains why you should also exchange your air in a sealed environment with CO2 enrichment. It comes down to excess ethylene build up and proper oxygen levels. Makes sense, my worst producing sealed rooms where the ones that I used a propane CO2 burner. The excess...

Yes I would agree that you will need to use a bit more CO2 with air exchange but the extra pennies you will spend on that will be trumped by the extra dollars you get by hitting more weight per light. Even if my CO2 cost goes up by a couple hundred bucks, I don't care cause I will make it up...

While the yields are still good with CO2 enrichment and no air exchange in a sealed environment, the hybrid CO2 enrichment with air exchange works better. You get bigger nugs and more weight. I don't know the exact science of why this occurs but I can tell you from experience of doing it both...

Finally I find someone who knows what's up. I've ran completely sealed grow rooms enriched with CO2. While the yields are still good this way the hybrid CO2 enrichment with air exchange works better. You get bigger nugs and more weight. I don't know the science of why this is but I can tell you...

While you may get decent results by running CO2 and not ventilating your sealed room, you will hit less weight than if you had properly ventilated as well. The key is to maintain your CO2 levels but slowly vent out the air with a continuous exhausr fan using a dimmer controller or by exhausting...

You make a lot of sense with the statement below. The way I grow my OG kush, "negative effects on flowering plants { specially when the plants are closer to finish]. Any dying and decomposing plant mater can produce" I peak my nutes at week 4 and then its downhill from weeks 5-9 making my...

I thought of a possible logical reason why when I exchange air twice for 2 15 minute periods during the 12 hour light cycle in a completely sealed grow room enriched with co2, I produce slightly more weight and bigger buds. I think by doing that, I'm providing an alternate air flow that my...

The advantage of having a complete sealed room is that you can really control odor and avoid bugs and run CO2. My room is running CO2 in a sealed environment but twice during the 12 hour light cycle (every 6 hours)I turn off CO2 for 15 minutes and remove the air out from the top with a charcoal...

I don't know what it is but I've been running complete sealed grow rooms using 5 ton ac's and CO2 burners. For some reason that I can't explain, my experience has shown me that when I exhaust the air in my room twice during a 12 hour light cycle while using c02 the rest of the time my buds grow...

Based on the looks of you plant. It's the type that tends to stretch. Bring them in at 15 inches and top them a couple times in veg to create more branching. Use nets 2-3 levels and your ideal plant height should be 3.5-4 feet when growing under 1000 watts HPS lights. I would go 6-9 a light...