PH Test confusion? - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 4 Old 02-24-2011, 08:31 AM Thread Starter
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PH Test confusion?

I have never been into water testing and had my tank up and running for over a year doing just water changers every week on a Friday. After reading here I know I should of been keeping an eye on it so I get a water testing kit call Nutrafin and checked the water yesterday. Everything was fine but the PH was or looked like 6.5 (I've read guppy's like 7.2) so I was ready to try PH up if a water change didn't help. I went to the LFS an he told me he would get some in tomorrow for me. Anyway I ended up getting a second PH tester and tried this one and it read the water was 7.2 this one was a API. So now I'm not sure what to do I tested the water again today and took pic's.

this one is the Nutrafin which looks like 6.5 to me.



and this one is the API which like 7.2.



I'm not sure what to do so any help would be grate
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post #2 of 4 Old 02-24-2011, 08:51 AM
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Originally Posted by DTHunter123 View Post
I have never been into water testing and had my tank up and running for over a year doing just water changers every week on a Friday. After reading here I know I should of been keeping an eye on it so I get a water testing kit call Nutrafin and checked the water yesterday. Everything was fine but the PH was or looked like 6.5 (I've read guppy's like 7.2) so I was ready to try PH up if a water change didn't help. I went to the LFS an he told me he would get some in tomorrow for me. Anyway I ended up getting a second PH tester and tried this one and it read the water was 7.2 this one was a API. So now I'm not sure what to do I tested the water again today and took pic's.

this one is the Nutrafin which looks like 6.5 to me.



and this one is the API which like 7.2.



I'm not sure what to do so any help would be grate

API test kit is prolly closer to being acurate. Personally, I would put both away and continue as you have been with weekly water change which will keep pH stable.

The most important medication in your fish medicine cabinet is.. Clean water.
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post #3 of 4 Old 02-24-2011, 12:43 PM
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Originally Posted by DTHunter123 View Post
so I was ready to try PH up if a water change didn't help. I went to the LFS an he told me he would get some in tomorrow for me.
It's my understanding, and I'm a complete noob here so take this with a grain of salt, that chemical additives that change the pH aren't often recommended. They're very temporary solution and the change back and forth is often more stressful on the fish than being at a stable, less desirable, pH level. If you really end up needing to raise the pH I've read that coral sand in your filter media works well. Again I'm still really new at all of this...
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post #4 of 4 Old 02-24-2011, 02:33 PM
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1077 is correct, the API kit is reliable. Many of us use it. You're correct, livebearers need hard basic water, 7.2 is fine for guppies as you probably have some mineral hardness as well.

Ferret is also correct, using chemicals is dangerous. The pH of water is mainly due to the hardness, and a higher KH (carbonate hardness) acts as a "buffer" to maintain a stable pH. Adjusting the pH with chemicals is temporary; within 12-24 hours the water's KH brings it back. Result is fluctuating pH and this is far worse on fish than a stable pH even if somewhat outside their preference. In your case there is no issue anyway, but just for the record, please do not use these adjusting chemicals with fish in the tank. There are safer and natural ways to adjust hardness and pH when that is necessary.

Byron.

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 you’re going to take it under your wing then you’re 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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