NT LABS Aquarium Lab Hardness Test
NT LABS Aquarium Lab Hardness Test –
Provides a simple yet accurate way to test KH and GH levels within your aquarium.
KH, also known as “total alkalinity” or “carbonate hardness”, is a measure of the buffering capacity of the water in your aquarium. The buffering capacity also refers to how well it can resist changes in pH.
General Hardness – a measure of the total amount of minerals dissolved in the water. Water hardness lies on a spectrum between ‘soft water’ or ‘hard water’ depending on the number of dissolved minerals: the more minerals present, the greater the hardness.
Hard water is responsible for the build-up of limescale.
Key Features:
- Tests for KH & GH
- Highly accurate liquid test
- Simple to use
- Up to 80 Tests
Contents: Up to 80 Tests
This test kit measures KH in dKH (where one dKH = 17.8 ppm as CaCO3). It is essential to maintain a minimum KH level of at least 4 dKH at all times. A KH of between 6 and 8 dKH is more desirable.
How to use?:
- Ensure the test tube is clean.
- Take a 5 ml sample of water into the test tube.
- Take the KH reagent and add one drop, mix, and the water sample should then turn pale blue.
- Keep adding drops, one by one (remember to count the drops), mixing between drops, until the blue colour turns to yellow.
- The number of drops, including the first drop, needed to bring about the colour change is equal to the KH value in dKH. Should the first drop of reagent turn the sample yellow then the KH value is below 1 dKH – this is extremely dangerous for fish.
This test kit measures GH in dGH (where one degree = 17.8 ppm as CaCO3). The correct GH depends on the type of fish being kept. For soft water species, aim for a GH of around 3 to 6 dGH, while for hard water species, 10 to 15 dGH is the correct range.
How to use?:
- Ensure the test tube is clean.
- Take a 5 ml sample of water into the test tube.
- Take the GH A reagent and then add two drops.
- Mix and the water sample should then turn dark pink. Adding one drop of reagent GH B at a time, mixing between drops, also count the number of drops required for the solution to change from pink to blue.
- The number of drops needed to bring about the colour change is equal to the GH value in dGH. Should the first drop of GH B reagent turn the sample blue then the GH value is below 1 dGH and indicates very soft water.
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NT HARDNESS TEST – MPN : 262313
