1. Bottom-fan.jpg


    Small Fan at bottom to force CO2 Out
  2. 2FC81FB6-3198-40CC-93C2-DD02633EBC99.jpeg


  3. TysonOG

    Tyson's 4x4 ScrOG Feat: Mimosa In DWC 2019

    What is up 420 community! Man, I am so excited to be here. First of all let me tell you a little about myself. I have been into the growing hobby for 8 years now, but on and off. I started in soil and quickly switched to coco where i had a blast. I was always leery of trying full hydro but...
  4. DET—PDX

    Critical+ 2.0: Organic, Co2, Timber COBs

    Back again, transferred schools and moved out of Oregon, hence the hiatus. Anyway this is Dinafem’s critical + 2.0. Some brief tid bits about the set up: 5x5 Tent, 600w Timber RedWood COB LED 3000k for veg, adding 2 150w 1700k COB’s from Timber Grow lights in late veg thru flower. Evaporative...
  5. hydro91

    62 w/sft LED lighting too much?

    Dear 420 forums, Prior to my first grow with LED's I've decided to change up my lighting solution. I have a 5x5 tent and was hoping on fitting 4x Mars II 900 LED's to it. I'm being told by the LED supplier that this is a little too much lighting for my tent and the 4 plants that'll be going...
  6. K

    Winterizing oil at -80 degrees C, -112F: Better or worse?

    Hi, I have access to a freezer that goes down to -80 degrees C (-112 degrees F) My question is: will this be better or overkill for winterization compared to higher temperatures like -25 degrees C (-13F)? I had heard that I could lose the cannabinoids at this low temperature, they might also...
  7. super13star

    Completed Feedback & Opinions! LED & Hydro Setup: Beta Version

    This is a grow completed I did last year. Looking for feedback/input/thoughts, whatever. i wish i had taken more photos but hopefully you will get the jist. HYDRO SETUP - gravity fed to containers, containers drained into bottom tub. 5x8/10 foot enclosed trailer. Lighting LED (multiple lights...
  8. 20180518_093517.jpg


    Dry ice co2 method
  9. F

    CO2 question

    I have a small 3x2x6 foot space. 650watt led staged grow light with a 4" carbon filter and speed adjusted inline fan. I also brew wine. If I ran a line from my 5 gal carboy to the grow space. Would I see any benifit to the plant in terms of adding co2 or is it just a waste of time? Thanks
  10. kingfisher

    Abandoned 2nd Grow Sonoff CO2 4x4 Tent LED Soil

    2nd grow in soil and LED. This time adding a bit more tech. Sonoff WiFi switch timer/controller the fan and CO2. This set-up has the 4CH switch controlling the TH16. Why, because the 4CH has NO loop timer but the TH16 has that type of timer. The TH16 set at 1hr off, 3 minutes on, looping timer...
  11. C

    Does too much CO2 kill vegatation?

    Ask google and you get a million different answers.. including many that say plants need Oxygen at night to survive. Yes.. pure oxygen can kill a human.. but don't divers breathe it?? We are trying to keep greenhouses warm and non vented infrared propane heaters (with a thermostat) are not...
  12. Jackalope

    Co2 assist

    After multiple grows now in the same set up I have found cool results. My primary room was a home made 4x6x8 with a 1000 watt HPS. After 2 grows with it I added a 4x4x8 tent with a 600 watt light. The old room was taller so I always kept the tallest pheno's in it. The tent was on the other side...
  13. S

    Help with CO2

    CO2 I am growing hydroponicly in a 4ft x 5ft closet in my bedroom using led lights. Should I add a CO2 generator ( home made ) in there and also is it safe to breathe? I'm afraid they arn't getting enough air. Thanks
  14. dom2mac

    Photosynthesis - Light Intensity & Temperature

    Conclusion: At full sun spectrum at 100,000 lux or 9290 lumens per sqft additional lighting will provide no benefit to photosynthesis rates. At full sunlight temperature has a large impact on photosynthesis rates approximations for CO2 consumption 18C 300ppm 20C 325ppm 22C 350ppm 24C...
  15. M

    CO2 & Humidity

    Hi everyone, I've got a battle on my hands with humidity on a CO2 grow during fall season when it's too cool to use AC but not cold enough to run the heat. The good of CO2 is my plants are growing like crazy. Aggressive growth is how I would describe it. The bad is my closed tent humidity is...
  16. HigherTheHigh

    CO2 bags in grow tent - Up or down?

    Just bought 2 co2 bags for my grow tent as im running 3 600w hps lights in cool shades/tube. Temps are hitting 30c which is apparently good while using co2 bags, question is do i put them up a height or on the floor? I have fitted them up high level with my lights is that the correct way...
  17. A

    Thoughts on EZ CO2

    Anything helps
  18. Ron Strider

    NV: Extraction Facility For CBD Oil Production From Local Hemp Farmers To Open

    Freedom Leaf, Inc., The Marijuana Legalization Company, is pleased to announce that it has agreed to purchase CO2 Supercritical Extraction equipment for legal hemp CBD extraction from NuAxonTech, the producer of world class, large capacity Co2 Supercritical Extraction equipment. Clifford J...
  19. I

    Hash plant grow questions

    Hash Plant growing in soil, indoors under 600 HPS. Does she like co2 during flowering? I thought all strains benefited from co2 until I met Sour Diesel. Ideal temps? Nute requirements? Thanks for any advice on growing this girl.
  20. Annabanana


    Hello fellow OzStoners I've not grown for 15 years and the bulk of my experience is in outdoor cultivation. I've set up two tents ; 1 is 1.5 sq/ m, the other is 4 sq/m and am waiting for my seeds. But my question is; is there an alternative for the production of CO2 via canister & regulator...
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