Heone Fish Water Test Kit – GH (General Hardness)
GH (General Hardness) testing is important as it measures the amount of calcium and magnesium in your aquarium water — minerals that fish need to stay healthy.
It helps you:
- Keep fish in water that matches their natural habitat
- Prevent stress, illness, and poor growth
- Support proper bone, fin, and egg development
- Improve breeding success
- Maintain stable overall water conditions
In short, correct GH = healthier, less stressed fish and a more stable aquarium environment.
| Parameter | Value |
|---|---|
| Test Type | GH (General Hardness) |
| Kit Includes | Test strips, instruction manual, storage case |
| Accuracy | ±0.5 dGH |
| Test Range | 0–50 dGH |
FAQ
How often should I test the GH level in my aquarium?
It is recommended to test GH every 1 to 2 weeks, or more frequently if you are adding new fish, changing water, or breeding fish.
Can this test kit be used for other water parameters?
No, this kit is specifically designed for measuring General Hardness (GH) only.
Are the test strips reusable?
Please contact customer service

Gordon Hart –
The test strips are easy to use and give clear results. I’ve been using them for two months and noticed my fish are more active and less stressed. The instructions are straightforward and the kit has helped me maintain stable water conditions.
Alexandra Ball –
Good value for the price. The results are consistent with my previous GH readings. It’s especially helpful when I’m preparing to breed my fish. The only thing is the strips need to be stored in a dry place to avoid moisture damage.
Warren Gibson –
I used this kit after switching to a new tank setup. The GH readings helped me adjust the water properly. My fish have shown better color and growth since I started testing regularly.