API 5 in 1 Test Strips – 4 Pack
Quick and accurate test strips. Test for pH, nitrite, nitrate, general hardness (GH), and carbonate hardness (KH). Just dip directly into your pond water and compare the colour against the colour charts to read the result. Includes information on how to correct unsafe water conditions.
Test Parameters
| Parameter | Test Method |
|---|---|
| pH | Dip and compare with colour chart |
| Nitrite | Dip and compare with colour chart |
| Nitrate | Dip and compare with colour chart |
| General Hardness (GH) | Dip and compare with colour chart |
| Carbonate Hardness (KH) | Dip and compare with colour chart |
FAQ
How do I use the test strips?
Dip the test strip directly into your pond water for 10 to 15 seconds, then remove and compare the colour to the chart provided in the package.
How long are the test strips good for after opening?
The test strips are typically good for 12 months from the date of purchase when stored in a dry, cool place.
Can I use these strips for freshwater aquariums?
Yes, these test strips are suitable for use in freshwater ponds and aquariums.

Alan Gill –
The test strips are easy to use and give clear results. I dip them into the pond water and match the colour quickly. The instructions are straightforward and the chart is helpful for understanding water conditions. I’ve used them for several weeks and they remain accurate.
Thomas Black –
Works well for checking pH and nitrite levels. The GH and KH readings were a bit tricky to interpret at first, but the included guide helped. I found the strips reliable and convenient for regular pond maintenance.
Leonard Hardacre –
I bought this set for my koi pond and it’s been a game changer. The test strips are sensitive and show changes in water quality early. The colour chart is clear and the results are consistent with my other testing methods.