Fritz General Hardness Test Kit One Size
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Testing your aquarium’s water parameters regularly is an important part of keeping and maintaining a healthy environment for your fish and invertebrates. Fritz General Hardness (GH) Test kit is a liquid-reagent-based test that accurately measures GH in freshwater aquariums. The kit contains the required reagents, a test tube and instruction card with test color chart.
Why test General Hardness?
Directions
- To remove childproof safety cap, push down while turning.
- Fill a clean test tube with 5 ml of water to be tested (to the line on the tube).
- Holding the GH test solution dropper bottle upside down in a completely vertical position, add one drop at a time. Cap the test tube and gently shake between drops. Count the drops as they are added.
- The test is complete when the water in the test tube turns from yellow/orange to green (after having been gently shaken).
- If you have difficulty discerning the color of the test solution is added, remove the cap from the test tube and while holding it over a white background and look down through the tube.
- See conversion chart. The number of drops needed to turn the water from yellow to green determines the GH value.
|
Number of drops
|
GH value (ppm)
|
|---|---|
|
1
|
17.9
|
|
2
|
35.8
|
|
3
|
53.7
|
|
4
|
71.6
|
|
5
|
89.5
|
|
6
|
107.4
|
|
7
|
125.3
|
|
8
|
143.2
|
|
9
|
161.1
|
|
10
|
179.0
|
|
11
|
196.9
|
|
12
|
214.8
|
Common species GH ranges
- Soft water fish, like Discus and other South American cichlids: below 4 dGH ( 0 – 70 ppm)
- Tropical community fish, like tetras and betta: 4-8 dGH (70 – 140 ppm)
- African Rift Lake cichlids: above 8 dKH (140+ ppm)
Why You Should Buy:
Size:
5 x 2.75 x 1.5UPC:
80531040072
Unit Weight:
0.17 lb
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