Salifert Freshwater Test Carbonate Hardness KH

Salifert Freshwater Test Carbonate Hardness KH for pH Stability

The Salifert Freshwater Test for Carbonate Hardness (KH) is an essential tool for any serious freshwater aquarist. Carbonate hardness, or KH, represents the water's buffering capacity, which is critical for keeping the pH steady. Without adequate buffering, pH levels can crash or spike, causing significant stress to fish and other aquatic life. By regularly monitoring your KH, you can ensure your tank stays within the recommended range of 6 to 8 dKH for most freshwater setups.

This kit is engineered for simplicity and accuracy. By counting the drops of reagent required to change the water sample from blue to yellow, you get a direct reading of the dKH level. This eliminates guesswork and allows for precise adjustments to your water chemistry.

Specifications

• Number of Tests: 80 tests per kit
• Measurement Scale: 1 drop = 1 dKH
• Color Indicator: Blue (initial) to Yellow (endpoint)
• Application: Freshwater Aquariums
• Recommended Range: 6 to 8 dKH (for most freshwater tanks)
• Package Contents: KH reagent (dropper bottle), test vial, syringe, and instructions

How to Use This KH Test Kit

1. Use the provided syringe to add exactly 5 ml of aquarium water into the test vial.
2. Add the KH reagent drop by drop into the vial.
3. Swirl the vial gently for a few seconds after each drop to mix the solution.
4. Continue adding the reagent until the color changes completely from blue to yellow.
5. Count the total number of drops used; the final drop that triggers the color change is included in the count.
6. Calculate your result: each drop equals 1 dKH.

Care & Maintenance Tips

• Storage: Store the kit in a cool, dry place away from direct sunlight to maintain reagent potency.
• Shelf Life: Ensure the product is used within its remaining shelf life (typically minimum 6 months from dispatch).
• Contamination Prevention: Ensure the test vial is thoroughly rinsed with distilled or RO water between tests to avoid cross-contamination.
• Handling: Keep the dropper bottle tightly sealed when not in use to prevent evaporation or contamination of the reagent.