Precision Alkalinity & Carbonate Hardness Measurement for Reef Aquariums
Maintaining stable alkalinity (KH) is crucial for coral growth, pH stability, and the health of your reef aquarium. The Salifert KH/ALK Profi Test Kit offers highly accurate measurements in 0.1 meq/L (0.3 dKH) steps, allowing detection of even the smallest but important changes.
Carbonate and bicarbonate are essential for the formation of coral skeletons and the growth of calcareous algae. They also play a major role in buffering your aquarium’s pH, keeping it within the optimal range of 8.1–8.4. With natural seawater alkalinity at approx. 2.7 meq/L (7.5 dKH), this kit helps ensure your reef maintains stable and healthy conditions.
Key Features
Measures in precise 0.1 meq/L or 0.3 dKH increments
Sharp, easy-to-read colour change for accurate results
Detects small yet significant fluctuations in KH
Ensures optimal pH stability and coral growth
Ideal for reef tanks, marine aquariums, and FOWLR systems
What's Included
Instruction Manual
Plastic Vial
Syringe (5ml)
Syringe (1ml)
KH Reagent – 50ml
KH Indicator – 10ml
KH/Alkalinity Standard Check Solution – 15ml
100–200 Tests per kit
