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growing tent, what size

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    growing tent, what size

    What size lights should I use in a 2mtr x 1mts square tent as my plants do not seem to be thriving

    Much more info needed, Type of light, height, soil, nutes, needed. Would be happy to help.
    Grow # 3 50/50 S/I Critical Mass photo fem
    Seeds drop in water 1/8/2022

    Medium: FF Coco Loco plus 30% Perlite in 7 gal cloth bags
    Space: 30x48x62 DIY cabinet lined w/space blankets
    Lighting: Bloomspect SS1000 Quantum board x 3 - 300 watts actual draw
    Soil Supplements: Worm Castings, Crab Shell, Oyster Shell, Neem and Karanja Meal, Volcanic Basalt Dust (for minerals), Recharge root micros. Grow 3 is with reconstituted super soil to which I've added several additional minerals and supplements. A more complete list based on Cackamas Coots super soil recipe can be found in my Auto Toka thread
    i don't grow plants anymore, I grow soil that my plants can thrive in!
    My filtered tap water runs over 7.5 pH but the soil microbes
    make pH correction unnecessary
    Ventilation: Vipospar 4" Exhaust Fan w/RH controller, 12" Carbon Scrubber
    8" bottom intake fan, 6" clip on fan, 6" heater as needed
    Cabinet on screen porch. N AZ @ 4000 ft.

    My salute to all who have served
    Semper Fidelis!


      I’d recommend LEDs somewhere around 300w for that size. Do two lights at 150w each instead of one single light.
      There are 3 things you must check everyday when growing in hydro:
      1) Water level (How much h2o is she drinking in 24hrs)
      2) pH level (change over 24hrs)
      3) ppm/EC level (How much food is she eating in 24hrs)


      • RetiredGuy
        RetiredGuy commented
        Editing a comment
        Hey, I know you know better than me, is there something wrong with my calc below?

      • YYCannabis
        YYCannabis commented
        Editing a comment bad. You are correct. I was thinking it was half of a 4’x4’ (600w) over 16 ft2. So yes...around 600w would be more accurate. I still recommend people buy multiple fixtures to cover an area instead of a single high power fixture.

      With a good quantum board light you need about 30 watts/ft2 from the wall. 2 m2= 21.5 ft2, so about 650 Watte, if the whole tent is used.


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