Simple Test: Potassium


  • Add 5 ml of reagent K to the vial.
  • Place the vial on the black symbol of the seagull on the sheet.
  • Fill the 1 ml syringe with 1 ml of aquarium water and, looking at about 25 cm away, add drop by drop into the vial. Shake gently after each drop waiting for a few moments the formation of turbidity.
  • Stop adding only when it is no longer possible to see the seagull symbol. If after the first syringe it is still possible see the symbol, repeat the previous point.

ppm (mg/l)

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