Ppm And Nutrient Question

Discussion in 'First Time Marijuana Growers' started by flygui420, Apr 18, 2014.

  1. #1 flygui420, Apr 18, 2014
    Last edited by a moderator: Apr 18, 2014
    grow info:
    4x4x8 tent
    1000W HPS
    coco fiber - 3 gallon pots
    temps - 70-80
    humidity - %30-%45
    PH 5.5-6.0
    PPM of tap water is around 135.
    48 days into flower 12/12
     
    So here's my dilemma. Weeks 1-4 of flowering I did not have a ppm meter and was watering with bloom nutes (botanicare) and big up powder every 3-4 days or so. So I did a good 7-8 waterings with full strength nutrients according to the feeding chart. This means every time i watered i fed them with both supplements.
     
    My question is do you think that I over fertilized my plants? Here's a thought - I put 135ppm water and fed one of my plants, the run-off measured to around 2450ppm. Would this scenario mean there is a nutrient buildup in the coco?
     
    And if so should i flush my plants and how often? 3 days ago I watered with JUST ph'd water and the runoff was still 1000+ppm
    I'll probbaly need to water tonight when they wake up
    There's only about 40-50 more days of flowering and i want to get this right.
     
    Please relay any tips or thoughts. I'm experiencing slow flowering growth as a result i belive, or i'm impatient I'll post pics with my phone! :bongin: :bongin:

     
  2. ImageUploadedByGrasscity Forum1397799075.498583.jpg ImageUploadedByGrasscity Forum1397799099.980806.jpg ImageUploadedByGrasscity Forum1397799140.314074.jpg ImageUploadedByGrasscity Forum1397799173.297630.jpg ImageUploadedByGrasscity Forum1397799241.081873.jpg


    Sent from my iPhone using Grasscity Forum
     
  3. Damn no one?


    Sent from my iPhone using Grasscity Forum
     
  4. Have you read AskEd's Coco guide? He suggests flushing every 4 weeks as a rule of thumb. IMO I would keep the feedings in the 700-1000 ppm range. From what I understand, coco is very forgiving, so when you do go over, simply flush and dial it back in. 
     
    http://forum.grasscity.com/coco-coir/620656-askeds-coco-guide.html
     
    I am not an experienced grower but these are my understandings. Please correct me if I am wrong, I am here to learn.
     
  5. Thanks @[member="InternationalHarvester"] I'll try that out.
     

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