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Thread: Dwc help

  1. #1

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    Default Dwc help

    Hey every one first time indoor grower many outdoors, OK so I started off in 15l buckets and had a good start, a few ups and downs but learning lots, when it can to the flower cycle things started to get a little hard to control drinking way to much water in a day and my ec and pH were all over the place. So I upgraded my buckets to rubbish bins 50l just over 40l to the bottom of the basket, I'm running GH at half dose and 15mls of pk plus a little clamag and hydro guard I'm in the 5th week of flower plants are looking really good but I would have thought that the buds would have been more chunky lol anyway I had my ppm set at about 900 or 1.3ec very low I think for this stage, but the thing is my pH is still dropping slowly and the EC rises slowly I have now dropped them to 830ppm 1.1-1.2 ec and will update at the end of the day on what happens with the numbers, I was feeding organic boosters but they seem to play havoc with my pH so have cut it back to the basics.

    So my numbers have been good but they have only drunk maybe a L of water all day I have had them feeding nicely at 1.4ec before but I was using to many products and couldn't control the EC and pH for more than 3days.

    So I have 2 plants in a 50l rubbish bin each under a 315w cmh there were under a 3000 watt led that was using 600w of power and don't think it was earning its watts so have changed to the cmh

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  3. #2

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    Any help would be appreciated I would post some photos but need to post a little more to me it's like they aren't feeding and maybe I need to take them to straight water for a little, would I have stressed them out changing the light type, I think the new light is giving better lums but I guess it's a different spectrum

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  5. #3

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    Welcome along , gonna need pic's mate, not a lot peeps can do without seeing the plants

    From behind the bushes


    "Patience is bitter, but its fruit is sweet."

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  7. #4

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    Looks like I can upload photos on the app

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  9. #5

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    And another

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  11. #6

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    I did have some cal mag deficiency but added I bit when I did the res change on Friday

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  13. #7

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    Some under normal light

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  15. #8

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    I also just had a thought taking them out of a 15l bucket and into a 50l may have stressed them out there roots now being suspended in water away from the base?

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  17. #9

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    I am just heading into week 6 of flower

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  19. #10

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    What size air pump are you using? I'm thinking in the bigger buckets you're not getting enough oxygen now.



    J


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  21. #11

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    I wouldn't say that they look unhealthy tbf. When's the last time you did a res change?

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  23. #12

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    I don't think they look unhealthy I just want to make sure I'm feeding them enough I did a res change on Friday so only a few day ago

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  25. #13

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    Quote Originally Posted by jingo View Post
    What size air pump are you using? I'm thinking in the bigger buckets you're not getting enough oxygen now.



    J

    It is a big pump about 90w without checking and I have 2 airstones in eack bucket I think they are 6inch stones


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  27. #14

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    So now I'm down to 1ec and the pH is still dripping and the EC is still on the rise I have feed them nothing but water for a week to get the EC down they don't seem to be drinking much maybe 1-1.5l of water a day

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  29. #15

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    Quote Originally Posted by Hippyhighs View Post
    So now I'm down to 1ec and the pH is still dripping and the EC is still on the rise I have feed them nothing but water for a week to get the EC down they don't seem to be drinking much maybe 1-1.5l of water a day

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    Keep on lowering your EC, your plant wants less feed and more water.



    J


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  31. #16

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    This is interesting, don't know if it would apply.

    Note 1.
    When pumping air into a nutrient solution in order to add Dissolved Oxygen, not only oxygen is present, CO2 is also pumped in. If you live near a busy road, this may be higher than normal, so you may get a dropping ph quite often. I have noticed most of the growers who suffer from a falling ph in DWC tend to live in large cities. This may not be a link but it could be.
    When CO2 is added to water, it makes it more acidic. This is the precise process which causes acid rain, pollution from power stations etc pouring CO2 into the air, this mixes with the water vapour in clouds causing acid rain.

    J

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  33. #17

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    I dont think this is my problem as I live out of the city but I do have my pump inside my room and at night I do have the plant above the ground as co2 is heavyer than oxygen

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  35. #18

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    Sorry that should be that I have my pump above the ground but only about 300mm off the ground, what ec should I be aiming at for my girls they are in there 6week of flower

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  37. #19

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    You using Co2?

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  39. #20

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    Quote Originally Posted by Hippyhighs View Post
    Sorry that should be that I have my pump above the ground but only about 300mm off the ground, what ec should I be aiming at for my girls they are in there 6week of flower

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    At some point you should get a condition where your water level is falling your EC is static or slightly falling and your pH is static or slightly rising and that's your correct feed level.



    J


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