API pH Test Kit (250-test)
A cheap, accurate liquid pH kit — the single most useful first test, covering the low range most tap water and community tanks sit in.
- +Liquid reagent gives granular readings a strip cannot, right across the low range
- +Hundreds of tests in one small bottle — an economical cost per test
- +Clear colour chart, numbered vials and good instructions
- +Matches lab results for freshwater pH in good light
- −Tests pH only — you still need ammonia, nitrite and nitrate kits
- −Low- and high-range are two separate bottles for the full pH picture
This is the API pH Test Kit, a liquid colorimetric kit reading the low pH range (6.0 to 7.6) that most tap water and community tanks sit in, roughly 250 tests per bottle. It is cheap, accurate and the single most useful first test, though it reads pH only.
- Checking pH accurately on a budget
- Community tanks and tap water in the low pH range
- Keepers who want a granular liquid reading
- Tanks above pH 7.6, which need the separate high-range test
- Anyone wanting a full parameter set, since this is pH only
- One-step convenience, since it is a drop test
We separate what the maker claims from what independent sources confirm, what owners report, and where we are drawing an inference. We do not bench-test products.
- Liquid reagent, low range 6.0 to 7.6
- Roughly 250 tests; about a 3-year shelf life
- Numbered vial and a laminated colour card
- It reads pH only
- Low and high range are separate bottles for the full pH picture
- Well rated; matches lab pH for freshwater in good light
- A cheap, accurate pH kit and a sensible first test; add ammonia, nitrite and nitrate kits for the full cycle
Hundreds of tests per small bottle keep the cost per test low. Reagents age over about three years, so replace by date. For readings above 7.6 you need the separate high-range pH kit.
- Using it above its 7.6 ceiling, where you need the high-range kit
- Reading colours in poor light
- Aged reagents that drift
We do not lab-verify accuracy; we relay the manufacturer's specifications and well-documented usage caveats. We give gear and method guidance only, not livestock or disease advice; route fish-health questions to a veterinarian or an established authority.
No, this is the low-range kit (6.0 to 7.6). For higher readings you need API's separate high-range pH test.
Yes, it reads far more granularly, which matters when small pH shifts affect sensitive fish or shrimp.
Roughly 250 per bottle, and reagents last about three years, so replace by date rather than only when empty.