JBL - ProAquaTest KH - Carbonate Hardness Test

Why do a KH test?

The correct water value for an aquarium or pond depends on the fish stock and existing vegetation. Even if the water is clear, it can be contaminated. If the parameters are incorrect, diseases and algae can develop in aquariums and ponds. In a healthy, close-to-nature aquarium / pond, it is important to regularly check and adjust the water parameters.

JBL offers rapid or color tests for all water analyses. These tests calculate a specific parameter or several parameters at the same time. They identify algae problems and negative parameters such as nitrates, nitrites, potassium and magnesium.

Maintaining sufficient and as constant as possible KH levels is an important prerequisite for the well-being of aquarium and pond residents and for the good growth of aquatic plants. Carbonate hardness (KH) is one of the most important water parameters to ensure pH stability. KH should not be less than 4°dKH.

How to use the kH test?

Fill a test tube with water to test and add the reagents drop by drop until the color changes from blue to yellow. Number of drops = amount of carbonate hardness.

Application: For new impoundments: once a day for the first week, then once a week.

Recommended KH level

• Freshwater aquarium (community): 5-12°dKH Malawi-Tanganyika aquarium: 7-20°dKH
• Planted tank with few fish (aquascaping): 3-8 °dKH Saltwater aquarium: 7-10 °dKH
• Basin: 7-10 °dKH