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Does anyone here use Citric Acid? I come from a long time back-ground in maintaining and raising high quality turf grass and landscapes. One of the most important things I've learned was top notch soil and water go a long ways in raising plants, especially important ones that give expensive...

Dr. Nick, is your statement of 4,500 btu's per 1,000 watts just your preffered method, or scientific? Reason I ask, my books call for 4,000 btu's per 1,000 watts. I'm trying to work with what I have rather then going deep into my pockets. As of right now I have (4) Champion Inverter Generators...

Thanks, that's what was confusing me. So with that said, if if you were to leave the vent blowing rather then sealing, when the air decides to kick on and gets the signal from the thermostat, will this act as supplemental air to the room? It just wouldn't be consistent? As for 14k Active Air's...

I have a quick question and must openly admit that I'm new to growing in a sealed environment. I've previously have used HPS lights with Intake and Exhaust set-up. However, I'm converting over to a completely sealed room using co2. My question is, in a sealed environment with HPS, obviously...

It depends on the grower to determine how "effecient" an HPS is. There are many more variables in my opinion. Amount of plants? Square Ft.? Co2? Growing Style? Nutrients? I don't disagree with HPS, as I love it. But HPS cost too much, old timers might disagree. Just as if my father would still...

Any opinions on these? https://www.amazon.com/Roleadro-1200w-Plant-Greenhouse-6%C3%97200watt/dp/B00NXOHVNO

Having not too much luck with cob's. Does anyone know of some links that sell them for a good deal? I don't have a manageable amount of time to build several lights. I would be open to paying someone to build them or if anyone knows of a place to buy, please let me know.

I just started looking into COB setups today, I'm still researching them also. I figure it would be best to come and let some guys who've got experience with various brands to point me in the right direction. As you mentioned, I know my budget isn't too low. However, I'm not wealthy enough to...

Resinhound, do you care to explain? Are you comparing par and watts to an HPS? I ask out of curiosity, but if that's what your implying, it's negligent to what I'm looking for. While I'll appreciate and yield more with a higher par and watt output. Power is a major concern. Especially, when I...

I'm going to keep this as short and simple as possible. I'm new to the forum, not a new grower. However, I've been small timing it for a while, and times have changed. I'm looking to increase my operation from a current 4x4 closet to an entire 10x10 room. I've previously been using a 1000 watt...