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  1. Fertilizers and Water Parameters
    When I use API test strips my gh comes up as 180 ppm. I want to test to see how high it actually is. What are my options in softening it that don’t include an ro/di system? That also works with sponge and cartridge filters? I have aquariums that are planted and not. Ranging in size from 2.5-30...
  2. Fertilizers and Water Parameters
    i cant get none of my GH test to do what there meant to go from orange to green ( ...?...) up to 60 drops still yellow 3 different bottles 6 different waters ... am i doing it wrong or do i not understand the test ?
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