Instructions:
1. Add 5 drops of indicator solution into the test vial.
2. Fill the test vial to the water level mark with aquarium water.
3. Fit the test vial tightly to the base and turn it upside down.
4. Put the test vial into the aquarium approximately 10cm below the surface. Attach to the aquarium glass using the suction cup provided.
5. Compare the colour of the test reagent with the supplied colour chart.
6. Change the indicator solution when the colour becomes pale (approximately every 2 weeks).
1. Add 5 drops of indicator solution into the test vial.
2. Fill the test vial to the water level mark with aquarium water.
3. Fit the test vial tightly to the base and turn it upside down.
4. Put the test vial into the aquarium approximately 10cm below the surface. Attach to the aquarium glass using the suction cup provided.
5. Compare the colour of the test reagent with the supplied colour chart.
6. Change the indicator solution when the colour becomes pale (approximately every 2 weeks).