API GH & KH Test Kit
$14.99
The kit planted-tank and shrimp keepers actually need — a liquid titration for general and carbonate hardness, the parameters strips only guess at.
Pros
- Titration drop-count gives a hard number for GH and KH instead of a guessed colour
- Hundreds of tests per bottle, with reagent refills available for a low cost per test
- Granular readings that matter for shrimp, buffering and planted-tank CO2
- Numbered vials, a clear colour chart and good instructions
Cons
- Two tests to run — GH then KH — each by drop-counting
- Needs a steady hand and decent light to spot the colour change
Score breakdown
Specifications
| Parameters Tested | GH (general hardness), KH (carbonate hardness) |
|---|---|
| Test Count | ~1,600 tests combined |
| Reagent Type | Liquid titration |
| Refill Available | Yes |
| Shelf Life | ~3 years |
| Chart Type | Colour reference |
| Vial Count | 2 glass tubes |
| Instructions | Booklet |
Alternatives
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