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    PH Fluctuations

    Ok, i have a question since my plants are showing signs from ph fluctuations. I put all my nutes in the water and mix it, i then let it sit for a while before i add the ph-down. After ph-down is added I'm within the range of 6.4-6.7 but since my plants are showing that something is wrong i checked the ph again in the same bottle that was 6.5 a couple of days ago. It was now under 6.0. The bottle has been standing for 2-3 days since my first measure, so my question is- does the ph in the water drop more after each day? Hope it made sense

    #2
    Are they in hydro or coco or soil? If they aren't in hydro, you should probably be shooting for somewhere around 6.0 when you are watering/feeding. I have had premixed/pHed solution sit a few days and need its pH adjusted again, so not much of a surprise there. If you're growing in hydro, you should be aiming for 5.5-6.0 in their nutrient solution. Try the tutorials for help diagnosing your plant issues. Most are pH-related but sometimes there's something else like too small of a pot (rootbound) or grow room temperatures and relative humidity.
    Fourth state-sanctioned grow. This time for seeds. Six Ghost Train Haze (Rare Dankness) seedlings plus a bonus GTH in coco - waiting to see how many boys/girls.
    4'X4' flower tent, AC Infinity 4" fan and filter, Advanced Platinum P4-XML2 LED
    RDWC six grow buckets and a reservoir.

    Four Skunk #1 seedlings (Sensi) plus one in coco
    Advanced Platinum P-300 LED
    3'X3' tent RDWC four grow buckets and a reservoir.

    Aurora Soul nutrients - Grow, Bloom, Infinity, Big Swell & PeaK.

    Side projects in coco: Flowering out moms of Black Widow, Acapulco Gold, Purple Haze & Laughing Buddha plus four Purple Haze clones cut from mom before 12/12 flip.

    On deck: BC Mango, Tuna God, Bubba God, DP Blueberry, Cinderella 99 or Mother's Finest regs or a mix of feminized stuff.

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    • Sessan
      Sessan commented
      Editing a comment
      They are in soil, temp pots and humidity is as it should. I first thought it was nitrogen deficiency, but since i have all the nutes required i checked the ph again and noticed that it had dropped under 6. So it is to low. But then i know that it can change after a couple of days, thank you for your answer

    #3
    You should measure your ph and adjust after mixing it instead of letting everything settle then taking your ph readings. I only mix enough water for that watering instead of making a big batch and letting it sit. May do good to flush your plants at a higher ph 6.8-7 with light chemicals
    In veg under SP150
    Glueberry OG
    Pineapple Chunk
    Bubba Kush x 2
    Hindu Kush x 2

    In flower under ES180 x 2
    Pineapple Chunk
    Purple Haze x 2

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      #4
      I use acid to bring the ph down.. It seems to be stable for a few days and thats all is needed. I did notice when I started using half distilled water : tap water it was more stable.

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