Precise alkalinity testing for stable and healthy reef aquariums

Alkalinity (KH) plays a key role in maintaining proper pH and calcium stability. The Salifert KH/Alkalinity Profi Test Kit provides fast, highly accurate readings using a straightforward titration method. With clear color change indicators and easy instructions, this kit is suitable for beginners and advanced reef keepers who want consistent and reliable water testing. Ideal for reef tanks with SPS, LPS, and mixed corals, this kit helps you achieve long-term stability by monitoring one of the most important water chemistry parameters.

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Key Features

• High-accuracy alkalinity testing for marine aquariums
• Easy titration method with clear color change
• Fast results — test completed in minutes
• Wide measurement range suitable for all reef tank types
• Lab-grade reagents for consistent, trusted results
• Ideal for SPS, LPS, and mixed reefs
• Long-lasting kit offering multiple tests per box

Why Alkalinity Matters

• Helps maintain stable pH levels
• Supports coral growth and skeletal strength
• Prevents sudden alkalinity swings
• Works together with Calcium and Magnesium for balanced reef chemistry
• Essential for coral coloration and overall tank health

Recommended KH Levels

• Reef Tanks (SPS/LPS): 7.5 – 9.0 dKH
• Mixed Reef: 8.0 – 9.5 dKH
• Fish-Only Marine Tanks: 7.0 – 10.0 dKH