API Nitrate (NO₃) Test Kit | Freshwater & Saltwater Aquarium Water Test | 90 Tests

Keep your aquarium healthy with the API Nitrate (NO₃) Test Kit, a fast and accurate way to monitor nitrate levels in both freshwater and saltwater aquariums. Regular nitrate testing helps prevent poor water quality, excessive algae growth, and long-term health issues in fish by detecting nitrate levels before they become harmful.

Nitrate is the final stage of the aquarium nitrogen cycle and is produced as beneficial bacteria convert toxic ammonia and nitrite into nitrate. While much less toxic than ammonia or nitrite, elevated nitrate levels can stress fish, reduce growth, weaken immune systems, and contribute to nuisance algae outbreaks. The API Nitrate Test Kit accurately measures nitrate concentrations helping you maintain a safe and stable aquarium environment.

• Measures nitrate (NO₃) levels from 0–160 ppm
• Suitable for freshwater and saltwater aquariums
• Helps identify poor water quality before it affects fish
• Supports healthier fish and cleaner aquariums
  
• Accurate liquid reagent testing
• Includes enough reagents for up to 90 tests
• Complete kit with test tube, colour chart and instructions included