Salifert Potassium Reef Test Kit (up to 40 test) Dog Food A tasty treat to provide

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Salifert Potassium Reef Test Kit (up to 40 test) Dog Food A tasty treat to provideThe Potassium reef test can be performed in about 90 seconds. This tritatic test kit has a sharp color change, going from yellow to blue, when you hit the level in the sample. 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