API Nitrite Test Kit (For Freshwater & Marine)

API® Nitrite Test Kit

The API® Nitrite Test Kit helps you monitor nitrite levels in your aquarium to protect fish from harmful water conditions. Nitrite is produced from fish waste, uneaten food, and as part of the natural nitrogen cycle when beneficial bacteria break down ammonia.

Even low levels of nitrite can impair respiration and weaken your fish’s immune system, while high levels can be fatal. Regular testing allows you to take timely action and maintain a safe aquatic environment.

Key Features

• Measures nitrite levels from 0 to 5 ppm
• Fast, accurate, and easy-to-use testing
• Suitable for freshwater and saltwater aquariums
• Helps prevent stress, disease, and fish loss

What’s Included

• Test kit for up to 180 tests
• 1 test solution
• Test tube
• Color comparison chart
• Easy-to-follow instructions