Help Me Understand KH and GH? - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 4 Old 11-05-2010, 09:16 AM Thread Starter
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Help Me Understand KH and GH?

Hi everyone,
I tried testing my tap water for KH and GH today using the API liquid tests. I managed to test my KH, it came back 3 drops, 53.7 ppm. I had trouble with the GH test. It said the test was complete when the water changed from orange to green, but the water never turned orange. It stayed green up to 12 drops. I'm not sure if this means it was a 1 or if I'm doing something wrong. My water pH is 7.6 on a test that only goes up to 7.6. I imagine it may be slightly higher than that. After each drop on the KH and GH test I inverted the tube six times and gave it a good shake. Thoughts?
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post #2 of 4 Old 11-06-2010, 12:18 PM
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I have that kit; the colours (green, orange) are faint and not "strong" and it is not easy to see them. Hold the tube above a piece of white paper and look down, it gives a better colour idea.

Are you on municipal water, or a well? If the former, check with your water company, they should be able to tell you the hardness (and pH and other info) on the water, or may have a website. This will confirm (or not) your tests.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If youíre going to take it under your wing then youíre responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #3 of 4 Old 11-06-2010, 01:22 PM Thread Starter
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I did look down through the tube, it wad decisively green, and I'd tried finding my municipal water site... I've successfully found it for someone else's town. The only site I found for mine was distinctly unhelpful, and I'm not certain how to get in contact with them otherwise. I guess I'll try the test again and see what happens. Thanks for the response.
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post #4 of 4 Old 11-06-2010, 03:52 PM
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Quote:
Originally Posted by Caliban View Post
I did look down through the tube, it wad decisively green, and I'd tried finding my municipal water site... I've successfully found it for someone else's town. The only site I found for mine was distinctly unhelpful, and I'm not certain how to get in contact with them otherwise. I guess I'll try the test again and see what happens. Thanks for the response.
If you check your municipal (town) listings in the phonebook or online if they have a website, you should find the water board or whatever they may call it.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If youíre going to take it under your wing then youíre responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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