- Regular price
- €11,00
- Regular price
- €11,00
The JBL ProAqua Test KH (Carbonate Hardness) is an essential, professional-grade liquid drop test designed to accurately measure the acid-binding capacity and carbonate hardness in freshwater aquariums, marine setups, and garden ponds. Maintaining proper carbonate hardness is critical because KH acts as a natural buffer system, preventing dangerous, rapid pH fluctuations that can stress or harm fish and live plants.
Short Description & Highlights
The JBL ProAqua Test KH utilizes a straightforward color-change titration method. By counting the drops of reagent added to a sample water vial until the color shifts cleanly from blue to yellow, hobbyists can directly read the exact hardness value (each drop corresponds to 1°dKH). For beginner aquarists, this reliable test kit takes the guesswork out of water chemistry and ensures optimal conditions for fish health and CO2 injection.
Key Product Highlights:
| Feature | Details |
| Product Name | JBL ProAqua Test KH (Carbonate Hardness) |
| Water Types | Freshwater, Marine Aquariums, and Garden Ponds |
| Test Type | Liquid Drop Titration (Color Change: Blue to Yellow) |
| Measurement Unit | 1 drop = 1 dKH (German hardness degrees) |
| Application Frequency | Once a week for new setups; once a month for established tanks |
| Target Audience | Beginner to Advanced Aquarists |
Detailed Beginner Guide & Usage Instructions
1. Why Carbonate Hardness Matters
For beginners, understanding KH is vital. Carbonate hardness measures dissolved bicarbonates, serving as a chemical "buffer" that stabilizes your water's pH level. If KH drops too low (under 3 to 5°dKH), your tank becomes vulnerable to dangerous "pH crashes." It is also crucial for planted tank hobbyists, as a stable KH ensures efficient and safe CO2 fertilization.
2. Step-by-Step Testing Procedure
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Rinse the included plastic sample vial thoroughly with the water you intend to test.
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Fill the vial with exactly 5ml of aquarium water using the provided dosing syringe.
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Add the test reagent drop by drop, swirling the vial gently after each drop, and count them.
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Continue adding drops until the color changes distinctly from blue to yellow.
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The total number of drops added equals your carbonate hardness in °dKH (e.g., 5 drops = 5 dKH).
3. Interpreting Your Results
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Community Freshwater Aquariums: Generally optimal between 5 to 12 °dKH.
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Plant-Heavy Aquascapes: Typically maintained between 3 to 8 °dKH to support steady plant growth and carbon uptake.
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If your readings fall outside these ranges, adjustments can be made safely using specialized mineral salts or routine partial water changes.
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Return Policy
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