LED and soil tent grow - Cannalope, Kushberry, Sour Kosher

Discussion in 'Grow Journals' started by CalmAnSense, Aug 29, 2018.


    CalmAnSense Well-Known Member

    This is my first journal, so I’m sure I’ll go overboard with TMI (I’m being particularly obsessive this run about every detail). But sharing enables learning, and I’m definitely keen on improving! Admittedly, being on RIU with so many super skilled growers has rather humbled me...there’s so much knowledge I need to absorb...

    I’m growing only for my own (very needed) medicine, so I’m completely focused on quality, not quantity. I’ve got about 4-5 years of closet grow experience with HPS and hydro, but this is my first tent grow with LED and soil.

    Comments, critiques, commendations, and coaching are all very much appreciated!!

    DNA Genetics - Cannalope Haze x 2 (fem), Kushberry x 2 (fem)
    Crockett Family Farms - Sour Kosher x 3 (reg) [60% indica release]

    Soil & nutes:
    Roots Organics Micro-greens Mix
    Fox Farms Ocean Forest Soil
    xGarden Coarse Perlite
    General Organics GO Box
    The Guano Company Super Tea
    Xtreme Gardening Mykos
    Filtered water

    Pest control:
    Bonide Neem Oil
    Monterey Gardens Insect Spray
    General Hydroponics Exile
    Tent vent filter cover

    Gorilla Grow 4x2x7’ tent
    California Lightworks SolarSystem 550 LED w/ programmable controller
    Kind LED 2’ Bar Lights x 2 (1 red, 1 blue)
    Vortex Powerfans S-600 in-line fan
    Phresh Carbon Filter 6x16”
    6” ducting
    Dual outlet timer
    USB-powered fans x 4
    Surge protectors x 2
    Heated propagation mat
    Ziplock sandwich bags x 7
    Plastic cups x 14 (7 clear, 7 red)
    1 gal plastic pots
    3 gal fabric pots
    7 gal fabric pots
    12” pot trays
    PH test kit
    Digital temperature & humidity gauge
    4x1.5x6’ stainless shelf rack
    Disposable plastic gloves
    Various cleaning supplies

    CalmAnSense Well-Known Member

    611E0BBA-AB9D-439F-82EF-E4020DEB2E03.jpeg DE9683B0-6FA5-4B88-91CC-5DEE02BBAC62.jpeg


    7am - Seeds placed in filtered water in shot glasses covered with cups for 24 hour soak
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    CalmAnSense Well-Known Member



    7 am - All seeds sank in water. Both CH seeds and SK 1 & 3 already sprouting roots. KB seeds & SK 2 not opened yet. Using tweezers, seeds placed in plastic cups filled with moistened RO Micro-greens mix with a bit of perlite at bottom for drainage, and placed on heat mat with ziplock humidity comes.
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    CalmAnSense Well-Known Member

    2C853B4B-D335-4E18-9128-067E46383DA7.jpeg 8/29

    6 am - CH1, SK1, & SK3 visible, just barely sprouting out of soil. Humidity domes removed for those, but kept on for the others.
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    CalmAnSense Well-Known Member

    CD075E36-4081-4953-A857-BEEE72D588C1.jpeg 4794F5B2-F576-4B19-8323-04C83D65F41E.jpeg 8/30

    6 am - All 7 seeds popped out of soil. Today will be first full day of 18/6 light, as yesterday was only LED for about 10 hrs at half-intensity. The 550 is now set on R/W/B spectrums of 50/99/99, which is Cal Lightworks recommendation for veg cycle. The sunrise/sunset dimming is set to 30 minutes. Got the light a few extra inches away then ideal distance just to make sure the wee ones can handle the intensity.

    I’ll use non-blurple pics when there’s actually detail to see...

    SMT69 Well-Known Member

    Best of luck, I’ll be watching

    CalmAnSense Well-Known Member



    The LED being so low is collecting more heat in the bottom of the tent than I expected, even with the four clip-on fans running on high. Temps at plant level are getting between 84-90 when the Vortex fan isn’t running, and only down to 80-82 when it’s on. RH is dropping below 40 too.

    I’d rather have the light on lower intensity than either raise it much further from the plants, and/or run the in-line constantly. Full power at this early stage seems a bit of a waste anyways. So I put the spectrums at 25/50/50, and have the in-line running for 15 minutes every half hour. Once the plants get bigger and I can raise the light, I think the heat collection will be a bit more spread out so it’s not such an issue.

    Seedlings are still looking fine, so hopefully they didn’t even notice the brief heat...
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    CalmAnSense Well-Known Member

    5E944C7D-888E-4EFD-960D-C1AAD92BB449.jpeg 8/31

    6 am - seedlings are doing fine under 50% intensity light & distance, so we’ll keep things as they are. Tent temp overnight was ideal (70-75), and RH is ok at 50% (a bit low, but not terrible).

    Fan pics to show the air flow setup... B805C73D-E663-41BD-BD97-DA79D8AAC6E4.jpeg 9AC5AF8D-1CEC-4FD5-83A0-951DA168342D.jpeg
    Last edited: Aug 31, 2018

    CalmAnSense Well-Known Member


    10:30 am - all still looking happy, but a couple of the seedlings are rapidly gaining height, so I lowered the light to ~20” above and increased intensity to 30/60/60 to try and prevent any stretching. Temp at 81 & RH at 55.
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    CalmAnSense Well-Known Member


    12:30 pm - light position & intensity seems to be working for the wee ones...all 7 look the exact same height now. Temp getting up to 84 & RH down to 50, though, in this midday heat.
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    CalmAnSense Well-Known Member

    B959C8F2-7284-4E5C-8C4C-8FA080D06E6D.jpeg 1C855B39-A8EF-46C8-909E-6B64799CEB96.jpeg 9/1 - Day 7

    6am - still a little bit of stretching, so lowered the light down to 18” above, and increased intensity to 40/80/80. Temp overnight between 74-77, but tent RH dropped to 40. Fortunately, I’d watered the plants at 9pm, so soil isn’t dried out.

    CalmAnSense Well-Known Member

    45DCAFBE-7BDB-4312-B876-F4F04B2A9A22.jpeg 72594F81-A7DE-4F7E-AB9F-0129BE672D0C.jpeg 8E924C3A-4946-41C8-AD4F-5231B68D303B.jpeg 481519E2-CDAA-4D27-923C-FA7366B05415.jpeg 9/2 - Day 8

    7 am - of course, since I slept in a bit for a change this is the morning, I wake up to problems...

    SK 3 is leaning, and parts of its stem are super dark, almost black. I’m concerned it’s damping off, which would be a bit surprising, as I habitually stray towards under-watering. A check of the cup didn’t look at all like the soil is too moist. Crossing several of my fingers that it’s not blight already!

    Hopefully it just stretched too much and needs some stem support, so I topped off SK 3 with more microgreens media. Figured I might as well do the same with the other 6 seedlings too.

    Also turned up the 550 intensity to 50/99/99, which is max White & Blue. It’s cooler today, so tent temp is ~78 currently with light on, but still with lower RH at 42.

    Pics are before & after soil topping off...
    Last edited: Sep 2, 2018
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    TheDifferenceX Well-Known Member

    Looking good so far. Fellow soil and LED grower here, i'll be keeping watch.

    CalmAnSense Well-Known Member

    Right on. I’ve actually got your journal on watch for a few days now. It’s quite helpful, since you’re so far along in your run, and have successfully dealt with issues that I expect I’ve got good odds of having as well (hopefully none of my fems herm, which is my main concern, really). Best of luck with the week or two you’ve got left before harvest!

    SMT69 Well-Known Member

    Looking good, remember less is more when they’re very young. Don’t push them too much.
    I’ve noticed seedlings like more dryer than wet. Lean that way until they take off. Just a suggestion
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    CalmAnSense Well-Known Member

    Thank you for the guidance! I’ve been trying to be on the under-watering side, but I agree that it’s still been unnecessarily too much. I admit I get worried easily when they’re this small...but I have to keep reminding myself they are tougher than I expect...
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    CalmAnSense Well-Known Member

    9/3 - Day 9

    6am - seedlings looking fine. Light distance and intensity seem to be just right now. Still dealing with slightly elevated temps at bottom of tent (up to 84 this morning with light on), but it’s really the low RH (down to 38 this morn) that’s more of a concern. Not going to take much action yet though, other than opening up the tent to vent more, until I see signs the seedlings are suffering...

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    CalmAnSense Well-Known Member

    9/4 - Day 10

    6 am - seedlings are still cruising along at a solid pace. Temps have been consistent the last couple of 24-hour periods, min/max range of 74-86, with RH hovering around 40. Next step for them in a week or two, will be transplant into plastic 2 gallon trade pots (1.593 gallons) with FFOF soil amended with Guano Co Super Tea, some Xtreme Mykos in the transplant hole, and Perlite at bottom for drainage.

    During this year’s outdoor run, I noticed the switch from RO microgreens to FFOF seems a bit abrupt for some plants...nothing major, just a small bit of nutrient burn that occurred shortly after transplant. I’m currently debating filling the trade pots with ~75% FFOF, then finishing with a top layer of RO microgreens as a transplant buffer. I know the mute burn will still likely occur a bit later, but just thinking it might be better timing rather than the seedlings dealing with that and transplant stress at the same time...

    In pic, taken just after watering, the front two are Kushberry, the middle and right-middle are Cannalope Haze, and the left-middle and top two are Sour Kosher.

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    CalmAnSense Well-Known Member

    9/5 - Day 11

    6 am - situation normal. Temp range still 74-86, and RH between 40-50. Pic is seedlings after watering, trying to wake up...

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    CalmAnSense Well-Known Member

    9/6 - Day 12

    6 am - situation normal, environmental variables holding steady. Keep on keepin’ on, lil’ ones...

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