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testing co2
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  1. DIY
    Just bought my first regulator and CO2 cylinder. Also bought a drop checker from Amazon and the instruction says to use aquarium water with their indicator solution. Now I know that isn't precise because my aquarium is not at 4 KH. Sadly I cannot find any solution on Amazon Canada, and the 2 LFS...
  2. Fertilizers and Water Parameters
    How do you know that the CO2 levels in your tank? It's not like theres a co2 tester is there?:bounce::icon_ques:drool::o:icon_conf:D:help:
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