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  1. J

    Flourite Black Sand dumping GH and KH

    No Seachem insists it won't affect KH or GH quiet at all. I'm discussing it now on APC in seachem sponsor subforum. They think I have a bad bag, not sure really since no one before tried what I did. I'll let you know how the discussion goes about it on Seachem but they're showing a good support
  2. J

    Flourite Black Sand dumping GH and KH

    I don't think KH and GH will drop even without WC. The soil looks really saturated and leaking tons of Ca and CO3, maybe Mg. In few days, GH and KH raise in my tank. Probably it is the equilibrium between water, soil and plants uptake in my case. I just can't explain why Seachem claims their...
  3. J

    Flourite Black Sand dumping GH and KH

    Hi, Facing difficulties to lower my GH and KH in my RCS 45L, I made this test: I filled half of a drink glass with Seachem Flourite Black Sand. Added RO water (KH 0.6) to fill the glass and stir it. After 3 weeks, I tested: KH 5.4 GH 8 :shock: Just shocked. Is this how my tank would go if I...
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