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Ro Water Troubling Calcium, And Plants Started Showing Deficiency Symptoms.

Discussion in 'Aquatic Plant Fertilization' started by Neil, Sep 8, 2019.

  1. Neil

    Neil Member

    Oct 15, 2018
    Likes Received:
    Local Time:
    1:12 AM

    Ive started using complete 100 % RO water because the water we have here is no less than liquid metal.
    RO Water KH is 0 and TDS is around 110-120.
    400 L tank capacity

    I dose DIY fertz but 2 things are causing trouble

    1). Calcium
    2) Traces like Chloride, Nickel (No such deficiencies i could detect so far, but its expected in a long run)

    My Nitrates are around 20ppm (may be 25 ppm at Max).
    I'm using EDTA-Mg to dose Magnesium but the real problem is with Calcium.
    If i use Calcium Nitrate the Nitrates are Exorbitantly high may be by week end it reaches 80 ppm
    Calcium Sulfate - Not at all soluble
    Even if i use Calcium Chloride the Chloride will go as high as 26 ppm that too PER DOSE...

    RO Water

    pH ~ 6.5
    Nitrate- 10 ppm
    KH - 0

    Other fertilizers m using are (All as per EI)

    KNO3 - Nitrate skipped

    Ca (Troublesome)
    Sulful (no Separate dosing)
    Micronutrient doesn't contain Cl & Ni)
  2. Joshua Nathan Davies

    Nov 25, 2019
    Likes Received:
    Local Time:
    2:42 AM
    Hi There,

    I saw your post and it might be a bit late to reply, but i hope my opinion helps. I would suggest you to buy Seachem Equilibrium. it has everything RO water would need.
    Mooner likes this.
  3. Julia Adkins

    Julia Adkins
    Lifetime Member

    Jun 22, 2015
    Likes Received:
    Local Time:
    8:42 PM
    What about calcium carbonate?

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