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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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