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  1. M

    Testing ph

    I have a 2 point calibration ph pen which seems pretty terrible, it looses calibration almost instantly. How accurate are liquid tests for ph? At the minute im taking my water into the lab at work but its not too practical :) This is for a shrimp project which is the only reason im concerning...
  2. M

    Accurate method of mesuring nitrates

    I know the forum belief is that your average nitrate test kit is highly inacurate so i was just wandering what an accurate method of measuring would be? Im not concerned about nitrates, more of a curiosity :)
  3. M

    Ouch

    Just figured out why i dont do as well as id like to with certain fish at my girlfriends house. Tested the gh, and the scale doesnt go high enough.. It goes straight to 500mg/l as soon as I do it on 2 different tests. Would also explaine why i cant keep certain plants alive :crazy: Gonna...
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