Nyos Carbonate Hardness (KH/Alk) Test Kit

What It Is

The Nyos Carbonate Hardness (KH/Alk) Test Kit is a high-precision titration test designed to measure alkalinity in marine aquariums. Alkalinity is one of the most important parameters in reef keeping, influencing coral growth, stability and overall system health.

Why We Like It

If we could only recommend one test kit to a reefkeeper keeping stony corals, alkalinity would be very close to the top of the list. Corals consume alkalinity continuously as they grow, and changes in KH are often seen long before issues appear in calcium or magnesium levels.

Regular alkalinity testing allows dosing to be adjusted before problems develop, helping maintain the stability that successful reef aquariums depend on. Whether you're using water changes alone, an all-in-one supplement, a two-part system or a full dosing programme, alkalinity is usually the parameter you'll test most often.

The Nyos KH test is known for its straightforward procedure, clear colour change and excellent resolution, making it a popular choice for routine reef maintenance.

Key Details

• Measures alkalinity (KH/dKH) in marine aquariums
• One of the most important parameters for reef keeping
• High-precision titration test
• Clear and easy-to-read endpoint
• Ideal for monitoring coral consumption
• Suitable for all-in-one, two-part and multi-part dosing systems
• Excellent for routine reef aquarium maintenance