First LED Grow

Discussion in 'First Time Marijuana Growers' started by 6feetfromthedge, Mar 16, 2019.

  1. #1 6feetfromthedge, Mar 16, 2019
    Does this look like light burn or N deficiency/pH lock?
     

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  2. #2 GD1966, Mar 16, 2019
    Tell us what light you are using.


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  3. #3 GrasscityGal, Mar 16, 2019
    What kinda soil is that?
     
  4. #4 -Cannabliss-, Mar 16, 2019
    She looks hungry and perhaps even a bit of light burn as well. What kind of soil are you using? Looks pretty wet, compacted, and it could use some perlite. The soil also looks to have too many "chunky" pieces in it. Roots may even be stunted due to all the reasons mentioned above. Just my take.

    How high above her do you have those LED's?
     
  5. #5 6feetfromthedge, Mar 16, 2019
    Coco coir
     
  6. #6 6feetfromthedge, Mar 16, 2019
    Viparspectra PAR 450
     
  7. #7 6feetfromthedge, Mar 17, 2019
    Now 30" raised up last few days from 23". Had just watered and fed it but little concerned because I checked pH of gallon nutrient solution and had dropped to like 3.5 after adding nutes
     
  8. #8 -Cannabliss-, Mar 17, 2019
    Gotta raise that pH my friend. It's pretty way off. That may be why she's not taking in proper amounts of nutes and looks hungry. Did you properly buffer that coco before using or was it already buffered?
     
  9. #9 6feetfromthedge, Mar 17, 2019
    I wasn't aware that nutes would drop pH. So do I rinse it???
     
  10. #10 6feetfromthedge, Mar 17, 2019
    I buffered it
     
  11. #11 -Cannabliss-, Mar 17, 2019
    I'm not too sure what may have caused the pH to drop so much. What pH do you leave your nutrients at right before you water?
     
  12. #12 6feetfromthedge, Mar 17, 2019
    I read someone else's post somewhere that they had same problem. I mixed mine 40% recommended dosage in gallon of 5.9 pH distilled water
     
  13. #13 -Cannabliss-, Mar 17, 2019
    Try leaving the pH at about 6.0 and see how that works. Are you giving her Cal-Mag with your feedings? Perhaps someone with more experience in coco could leave some input. You can also read up on growing in coco forum here. Perhaps you'll find a topic with an issue similar to yours.
     
  14. #14 wwonka, Mar 17, 2019
    You might try going slightly above 6 which is what I do. Plants responded much better and I am using Cal-Mag with every feeding under QB lighting.
     
  15. #15 6feetfromthedge, Mar 17, 2019
    Thx very much
     
  16. #16 SammyGrows, Mar 17, 2019
    Seedlings that size will be supplied with all the nutes they need from the cotyledon. No reason to feed a seedling that early. I have 14 seedlings on day 8 and I haven’t fed them anything at all yet and they’re perfectly healthy. I’ll start with quarter strength next week.

    OP your light is like 200 actual watts and isn’t the problem. I have a 320w QB kit set to 200 watts and hanging 20” above my seedlings and they’re doing just fine.
     
  17. #17 6feetfromthedge, Mar 17, 2019
    Thx a bunch
     
  18. #18 Freakish2667, Apr 4, 2019
    In soil no need for nutes till 3rd real leaves, be very careful watering not to wet leaves while watering or it will amplify light causing light burn

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