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drop checker

  1. Fertilizers and Water Parameters
    I recently bought a PH controller that I want combine with a Drop Checker to measure CO2 in my tank. In order words: replace the PH reagent in the DC solution with a PH sensor. I remember seeing a prototype drawing for this, somewhere in these forums, but I can't find it -.- Can you help...
  2. Plants
    Please help me use my drop checker. Some sites say to put 4dk water into it and add the indicator solution. Some sites tell me to put water from the tank into it. Which water do I use? And what color should it be? Some days it's blue, sometimes it's green.....My fish haven't died yet, and...
  3. Swap n Shop Archived Posts
    As stated I'm in need of 2 GLASS drop checkers. For tanks under 20 gallons. THANKS!
  4. DIY
    this may be a little pic heavy, but I was bored today and wanted to build my own DIY drop checker. So I used an old scented oil container, mixed up a batch of 4dKH and went to town. Here's some photos. My only concern is that the modified plastic tube is too small and will take a long time...
  5. General Planted Tank Discussion
    There has been lots of discussion about monitoring CO2 levels by judging the behavior of the tank's inhabitants. That makes more sense than trying to calculate levels, measure this or that, etc. My fish all seem to be really happy all the time, even though my drop checker is practically lemon...
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