API Freshwater Aquarium Master Test Kit
The Freshwater Master Test Kit is a complete solution for testing both tap water and aquarium water. It measures six key water parameters to help protect tropical fish from harmful conditions.
- Freshwater pH
- High range pH
- Ammonia
- Nitrite
- GH (General Hardness)
- KH (Carbonate Hardness)
Includes 4 test tubes and a tray for easy use. Designed for accurate, scientifically reliable results to support professional aquarium maintenance.
| Test Parameter | Measured Range |
|---|---|
| pH | 6.0 – 8.0 |
| High Range pH | 6.0 – 10.0 |
| Ammonia | 0 – 1.0 ppm |
| Nitrite | 0 – 1.0 ppm |
| GH | 0 – 30 dGH |
| KH | 0 – 25 dKH |
FAQ
How often should I use this test kit to monitor my aquarium water?
It is recommended to test water parameters weekly for stable conditions, or more frequently during water changes or after introducing new fish.
Can this test kit be used for saltwater aquariums?
No, this kit is designed specifically for freshwater aquariums and is not suitable for saltwater environments.
Are the test results accurate for both tap water and aquarium water?
Yes, the kit provides scientifically accurate results for both tap water and aquarium water when used according to instructions.




Yvonne Lyman –
This kit has been a game changer for my freshwater tank. I can now easily monitor pH, ammonia, and nitrite levels. The test tubes are clear and the instructions are simple. I’ve noticed fewer fish issues since using it regularly.
Nicholas Hardacre –
The results are consistent and reliable. I use it every two weeks to check water balance. The tray keeps everything organized and the test process is fast and easy.
Bella Ball –
I was skeptical at first, but after a few uses, I trust the readings. It helps me catch ammonia spikes early. The GH and KH tests are especially useful for maintaining stable water chemistry.