The API Freshwater & Saltwater Nitrite Test Kit 180 Tests is a precision aquarium nitrite test kit designed to accurately measure nitrite (NO₂) levels in both freshwater and saltwater aquariums. Nitrite is a highly toxic intermediate compound that forms during the nitrogen cycle, making regular testing essential—especially in new or unstable systems.

With up to 180 tests per kit, this test kit provides reliable, easy-to-read results, allowing you to detect harmful nitrite levels early and take corrective action. Ideal for monitoring tank cycling and maintaining safe water conditions, it helps protect fish and support overall aquarium stability.

Key Features

• Accurate nitrite test kit for freshwater and saltwater aquariums
• Up to 180 tests for long-term monitoring
• Detects nitrite (NO₂) during critical cycling stages
• Helps maintain safe water conditions for fish
• Easy-to-use liquid test with clear colour chart
• Trusted API quality for dependable performance

Compatibility

Suitable for:

• Freshwater aquariums
• Saltwater and reef aquariums
• New tank setups and cycling
• Routine water testing and maintenance

How to Use

Add the test solution to a water sample and compare the colour to the included chart. Test regularly during cycling and after adding livestock.