9.3
Score
API
API Freshwater Master Test Kit
★★★★★523 reviews
The most complete and cost-effective freshwater water test kit on the market.
$34.99
Independently tested · Why trust us?
Pros & Cons
✓ What We Love
- Tests 5 critical water parameters in one kit
- 800+ total tests — exceptional value per test
- Liquid reagents more accurate than strip tests
- Easy-to-read colour comparison guide included
- Industry-standard kit trusted by professionals
✗ Things to Consider
- Freshwater only — separate kit needed for saltwater
- Results require visual colour matching — slight subjectivity
- Glass test tubes require careful handling
Who Should Buy This?
- ✓All freshwater aquarium hobbyists
- ✓New fish keepers cycling a new tank
- ✓Anyone troubleshooting fish health issues
Compare Prices
Prices updated regularly. Click to check current live prices.
Full Specifications
| Parameters Tested | pH, High Range pH, Ammonia, Nitrite, Nitrate |
| Test Count | 800+ tests total |
| Format | Liquid reagent drops |
| Instructions | Colour comparison card included |
| Suitable For | Freshwater only |
Frequently Asked Questions
Reagents typically last 3 years from manufacture date. Check the expiry on the box and store at room temperature away from direct sunlight.
No, this kit is designed for freshwater only. API makes a separate Saltwater Master Test Kit for marine aquariums.
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Reviewed by Marcus Chen
Last updated: 2026-03-01 · How we test
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