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  1. AverageWhiteBloke

    Does Magnesium add a secondary chemical?

    Talking Epsom salts here. Can't help but notice that you have to add a fair amount of Epsom to yield a relatively small ppm of Mg. Is there something else being added to the tank or is it purely about the size of the crystals? What exactly is the sulphate?
  2. AverageWhiteBloke

    TDS Rise from topping off.

    May be a stupid question which I'm over complicating but why not. Am I right in thinking that if I have a 50 ltr tank with a TDS of 127 which loses about 4 ltrs of water per week and I top this water off with rain water with a TDS of 12 that I've raised the TDS by 12 divided by the 50 ltrs 0.24...
  3. AverageWhiteBloke

    Biogenic Decalcification

    I could be wrong at the moment I would have to test more but if plants are co2 limited and extracting carbon via carbonates in the water, could they remove enough carbonates to lower PH through the lighting period? The reason I ask is my tank was running KH limited, only just realised it. I've...
  4. AverageWhiteBloke

    Another Rain Water Question

    Just wondering if rain water would be any use for making up 4DKH? I'm due to knock up another DIY batch for my drop checker. I have no access to pure water by the means of RO or Deion. I did have an API tap water purifier but it was left unused for that long the water that came out was putrid...
  5. AverageWhiteBloke

    4DKH Fluid PH

    Am I wrong in thinking that 4dKH fluid is always a PH of 7? I have a digital PH tester pen and wondered if I can use a 4dKH fluid to calibrate it.
  6. AverageWhiteBloke

    Water Board Results

    I appreciate that these results are not the final word on what's coming out of my tap but I thought I'd take a look, is Propetamphos another chemical name for phosphates? The only thing I don't test for is po4 so was just curious to what it might be.
  7. AverageWhiteBloke

    Introduction & Question

    Firstly Hello, as this is my first post I thought I'd introduce myself & my setup. I've been a member of the forum for a while but spent a lot of time reading the articles before posting. I used to have a decent planted tank back in the day but due to work commitments away from home reverted...