Measuring range & accuracy
Measurement range: 300 - 500 mg/l (ppm)
Accuracy: 5 mg/l
About potassium
Potassium is a vitally important macro-nutrient for all living beings. In natural ocean water, this alkali metal is present in an average concentration of 408 mg/l. In a saltwater aquarium, the potassium concentration is usually kept stable by regularly changing the water. Nevertheless, a lack of potassium can occur in individual aquariums tanks due to the use of zeolites and other adsorbents. One sign of a possible lack of potassium is clear discolouration of corals and retraction of polyps. The potassium level in a saltwater aquarium should be checked regularly to ensure that the level is between 380 and 420 mg/l.
Package contents
- 12 ml / 0.40 fl.oz.“Standard“ (400 mg/l)
- 25 ml / 0.85 fl.oz. of reagent A
- 25 ml / 0.85 fl.oz. of reagent B
- 5 ml / 0.17 fl.oz. of reagent C
- 30 ml / 1.01 fl.oz. of reagent D
- 2 glass cuvettes 10 ml
- 3 dosing syringes 1 ml with syringe tips
- 1 instruction for use
Instructions for use
Information regarding the potassium test:
The precision of the measurement results may be increased by determining a „correction value“. For this purpose a measurement with reagent “Standard” (potassium) is carried out. This measurement indicates the correction value that should be included during each potassium measurement. We recommend determining the correction value again every 3-4 weeks.
