Carbonate Hardness Test

🎯 An essential parameter for pH balance

Carbonate hardness (KH) measures the concentration of carbonates and bicarbonates in water, which act as natural pH buffers. Too low a KH level leads to pH fluctuations that are dangerous for fish and plants. The JBL KH Test allows you to assess this key parameter to ensure stable and balanced water.

✅ The benefits of regular KH monitoring

1. pH stabilization (prevents acid drops or peaks)
2. Preserving the welfare of fish sensitive to pH variations
3. Promotes the growth of aquatic plants
4. Helps adjust water mixes (osmosis / tap) for ideal hardness
5. KH plays a fundamental buffering role, and its measurement is essential, especially in systems containing few minerals.
   

⚙️ Technical details

The kit includes :

1. 1 bottle of KH reagent
2. 1 test tube
3. 1 syringe for measuring water
4. 1 illustrated user guide

🎯Measuring range: from 0 to 20 °dKH (1 drop = 1 °dKH)
🔁Number of tests: up to 55 measurements depending on the KH level of your water

Essential when using osmosis water or CO₂ for plants: KH helps prevent sudden drops in pH.

JBL is a leading German brand in aquariums, renowned for the quality and innovation of its products for freshwater and saltwater aquariums and ponds.

For over 60 years, JBL has been developing a wide range of technical, nutritional and care solutions for fish, plants and reptiles, drawing on in-depth scientific expertise and rigorous laboratory testing.

Ideal for demanding aquarists looking for reliability and performance.