- Fast, easy, and accurate
- Measures potassium from concentrations of 250 ppm to 470 ppm
- Sufficient for up to 40 tests
- For marine use only
- Made in Holland
Salifert Potassium Reef Test Potassium concentration in natural seawater is approximately 400 ppm. Many aquarists have reported that a low potassium value reduces colors in corals. This can be corrected by increasing the potassium value to the normal natural concentration. Now you can accurately measure this value with the new Salifert Potassium Reef Test kits.