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Thread: Brown spots, does it look healthy/normal?

  1. #21

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    3 days later

    Grown almost more in 3 days than the first 2 weeks after adding nutes and reducing light.

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  3. #22

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    Keep an eye on her, but you can probably up nute strength a smidge.

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  5. #23

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    Im at 0.4 EC now. Background EC at 0.2. Can try adding a little more.

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  7. #24

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    Try 0.45-0.5 and then monitor for another few days. pH 5.8

    Once first true set of leaves I up from 0.2-0.3

    Hth

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  9. #25

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    Looking a lot better than she did, good luck fella

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  11. #26

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    Quote Originally Posted by 5ern View Post
    Meijiu HLG 550V2 480W
    3000k

    Quick Details
    Place of Origin:
    Guangdong, China
    Brand Name:
    meijiu
    Model Number:
    FOMEX V2-480H-4
    Application:
    Seed Starting, BLOOM, VEG, Horticulture Lighting
    IP Rating:
    Ip33
    Lamp Body Material:
    Aluminum
    Input Voltage(V):
    90-305VAC
    Lamp Luminous Flux(lm):
    n*83
    Warranty(Year):
    1-year
    Working Lifetime(Hour):
    50000
    Working Temperature(?):
    10 - 40
    Certification:
    EMC, LVD, RoHS
    Light Source:
    LED
    PPFD?mol/(m2·s):
    1865
    Lighting solutions service:
    Lighting and circuitry design
    Light Output(?mol/s):
    105600
    Luminous Efficacy(?mol/J):
    2.9
    Product name:
    Led Grow Light Hydroponic
    LED Light Source:
    Samsung LM301b
    PCB size:
    286X174X1.6mm
    power:
    480W
    voltage:
    48V
    hestsink size:
    660x490x4mm
    LED Quantity:
    1152pcs Leds
    Lamp Luminous Efficiency(lm/w):
    220
    CRI (Ra>):
    80
    Too much light! I would invest in a $12 cfl for the first few days then switch to dimmed and 56cm. I also agree that 0.2bg + 0.3 feed is a good place for now.

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  13. #27

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    Quote Originally Posted by CityDweller View Post
    Too much light! I would invest in a $12 cfl for the first few days then switch to dimmed and 56cm. I also agree that 0.2bg + 0.3 feed is a good place for now.
    Manufacturer spec sheet says 51cm -76cm from canopy. This looks like it is probably close to 480w actual when not dimmed.

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  15. #28

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    Its getting there. Roots have hit the water now. 5.7-5.8 ph and 0.6 ec.

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  17. #29

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    Does anyone know what the green stuff is?
    http://imgur.com/a/ebbEZm4

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  19. #30

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    Look like algae to me. Quite normal.

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  21. #31

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    Quote Originally Posted by Jumper114 View Post
    Look like algae to me. Quite normal.
    So its nothing to worry about?
    As u can see in these pics the leaves are curling upward (heat stress?) And its a little hole in one leaf and the other leaf got a v shape cut in it.
    Still at 0.6 EC.




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  23. #32

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    she is still hungry you can see that imo up the feed to 1.2 ec and that will do for vegging with back ground ec, the what looks like heat stress will clear up dont worry, if your around 26 to 28c your golden, u can see some mg def coming (dark leaf veins and light intervein mottling coming ) you could give them a a and b grow nutes folia feed with a drop of dish soap
    get the under sides of the leaves half hour before lights out and it will green them up a bit or even just mg spray it will green it up, res temp wants to be 17 to 19c over 19c you asking for root rot troubles to arise

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  25. #33

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    Mg, is that manganese?

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  28. #35

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    Ah, ok, cuz when I looked at my def chart, it look more like manganese def, but I will add some magnesium

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  30. #36

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    2.9 umols for that size of plant at 30cm .no wonder you fried it right out to space man .

    30 inches is what ya want at minimum

    Sent from my SM-G950W using Tapatalk

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  32. #37

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    When I had it at 30cm I dimmed Down pretty much.

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  34. #38

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    Quote Originally Posted by 5ern View Post
    When I had it at 30cm I dimmed Down pretty much.
    Even then man .

    Sent from my SM-G950W using Tapatalk

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