API Freshwater Master Test Kit
This kit tests tap water and aquarium water for five different parameters that affect the health of freshwater fish: pH, High Range pH, Ammonia, Nitrite and Nitrate. Highly accurate and economical.
Key Benefits:
- Unique, transparent dome allows clear view of kit contents
- Includes all tests required to test the nitrogen cycle
- Kit includes computer-calibrated and laminated colour cards
- 4 test tubes and holding tray
- Includes complete, step-by-step instruction booklet, including information on how to correct unsafe water conditions
- Compact to merchandise and easy to store at home
- Approximately over 800 tests
- 7 bottle kit
| Parameter | Test Included |
|---|---|
| pH | Yes |
| High Range pH | Yes |
| Ammonia | Yes |
| Nitrite | Yes |
| Nitrate | Yes |
FAQ
How many times can the test kit be used?
The kit is designed for approximately 800 tests, with each test tube used once per test.
Can this kit be used for both tap water and aquarium water?
Yes, the API Freshwater Master Test Kit is suitable for testing both tap water and aquarium water.
Are the colour cards calibrated for accuracy?
Yes, the colour cards are computer-calibrated for accurate results.



Claire Lambert –
I’ve used this kit for several months now and it’s very reliable. The instructions are clear and the test results are consistent. It’s easy to use and helps me keep my aquarium water safe for my fish.
Jonathan Dowd –
The transparency of the dome makes it easy to see the colour changes. I appreciate the detailed booklet that explains how to fix water issues. It’s a solid choice for beginners and experienced aquarists alike.
Anne Ferguson –
This kit has been a game-changer for my freshwater tank. I can now monitor pH, ammonia, and nitrite levels regularly. The test tubes are durable and the colour cards are easy to read.