






🌿 Keep your pond flawless and your fish thriving with every test!
The API 500 Pond Master Test Kit offers a professional-grade solution for pond water monitoring, providing over 500 tests to measure pH, ammonia, nitrite, and phosphate levels. Equipped with six testing solutions, four glass test tubes, and color charts, it ensures precise, easy-to-use water quality management. Trusted by fishkeepers for nearly six decades, this kit helps maintain a safe, healthy environment for ornamental fish and aquatic life.













| ASIN | B0002DJNN0 |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,517) |
| Date First Available | 7 August 2012 |
| Department | Testing Equipment |
| Item display height | 0 inches |
| Item display length | 0 inches |
| Item display weight | 1 Pounds |
| Item display width | 0 inches |
| Item model number | API POND - 164M |
| Item volume | 1 Milliliters |
| Manufacturer | API |
| Material type | Glass |
| Part number | API POND - 164M |
| Product Dimensions | 17.53 x 13.21 x 0.01 cm; 453.59 g |
R**N
Good product easy to use
R**D
works well
J**N
Good product
R**M
Find that the phials stain in time, so bought new.
R**S
Update: Apologies. Took water to local fish trader. The readings were about right Never before have in nearly 30 years keeping fish have I experienced such massive pond water parameter changes in a short period of time and wrongly accused the kit of being faulty. Lesson learnt. Apologies for review below - I was wrong. ———————————- Bought a couple of these over the years, this one must be faulty. Ph and phosphate tests, you can use the same water and time with 2 tests -and you get different results. Have repeated this multiple times and in 80% of tests the results don’t match. Nitrate and ammonia are fine. This is the first set I’ve bought that’s didn’t have gas tubes but plastic. Maybe that’s the issue. Don’t trust these now so won’t be buying again
Trustpilot
5 days ago
3 days ago