The API Freshwater Master Test Kit measures the five most important parameters in freshwater aquariums quickly and accurately: pH, high-range pH, ammonia, nitrite, and nitrate. Designed for professional results with easy-to-use, colour-based testing, this kit helps you maintain a safe and stable environment for your fish and plants.
| Test Parameters | pH, High Range pH, Ammonia, Nitrite, Nitrate |
|---|---|
| Number of Tests | Up to 800 |
| Includes | 7 test solutions, 4 glass tubes with caps, colour chart, instruction booklet, and storage rack |
| Suitable For | Freshwater aquariums |
| Manufacturer | API (Aquarium Pharmaceuticals) |
Monitoring water quality is essential for the health of your aquarium’s ecosystem. Even slight imbalances in pH, ammonia, nitrite, or nitrate can stress fish, harm plants, and encourage algae growth. Regular testing allows you to address problems early and maintain a balanced environment for your aquatic life.
Measures the acidity or alkalinity of your water. A pH of 7.0 is neutral — values above are alkaline, below are acidic. Maintaining the correct pH ensures your fish remain comfortable and stress-free in their ideal range.
Detects toxic ammonia produced by fish waste, uneaten food, and decaying matter. Elevated ammonia levels can damage gills and weaken fish immunity. Testing regularly helps you catch spikes early and take corrective action through water changes or ammonia removers.
Measures nitrite, a toxic byproduct of the nitrogen cycle. Even low levels can impair respiration and cause long-term harm. Regular testing ensures your biological filtration system is working properly to convert nitrite into less harmful nitrate.
Indicates the final stage of the nitrogen cycle. While less toxic than ammonia or nitrite, high nitrate can encourage algae growth and stress fish. Routine water changes and live plants help maintain safe levels.
Download the official API instruction guide here.
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