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Old 05-29-2008, 02:52 PM   #1
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pH

Hey guys,

two months in now...I have a clown, a goby, 6 snails, and two hermits in my 20g. Today's reading (after a week of being lazy and not taking samples) showed a spike in pH to 8.6. No idea where that came from. Are my fish in danger? My nitrAtes are up too to 5.0, but nitrItes are 0.0 and ammonia is 0.0. All else normal.
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Old 05-29-2008, 03:06 PM   #2
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Wow, what was the reading before? Keep in mind pH fluctuates so it is best to take the reading around the same of day. It will drop a little after lights out and rise after the lights are back on. Stability is best, even if you don't have the "perfect" pH.
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Old 05-29-2008, 03:08 PM   #3
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I agree... what time of day did you take the reading?
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Old 05-29-2008, 03:17 PM   #4
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I took it just now, and I turn on my lights at 10am-10pm. It's the highest it's ever been. I've been slacking off and I waited a full week to take these readings. I usually do it in the mornings.
Should douse the lights? Open the lid?
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Old 05-29-2008, 03:35 PM   #5
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Something else is going on if you have a lid. Usually a lid will cause a lower pH because there is more heat and not as much O2 exchange. Are you dosing the tank with anything? What have your readings been?
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Old 05-29-2008, 03:41 PM   #6
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I haven't added anything to the tank. The water I've been topping off with and doing water changes with is distilled water (no more tap water for my tank).
Does the buffer in my test kit help here?
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Old 05-29-2008, 04:05 PM   #7
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If you mean some type of pH buffer that came with your test kit... no - don't use it.

Are you really not adding anything? No PurpleUp or anything like that? Do you have an alkalinity kit? If so, what is that reading?
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Old 05-29-2008, 04:16 PM   #8
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I just now tested the pH Alkalinity and it is dead center normal. It has never been anything but normal.
I haven't ever added anything (I wouldn't know what to add) to my tank but food.
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Old 05-29-2008, 04:37 PM   #9
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"Normal" means different things to different folks. What is the number, either in dKh or meq/l? What type of test kits are you using for both pH and alkalinity?
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Old 05-29-2008, 04:42 PM   #10
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My kit has color charts and the Alkilinity is dead center of a scale showing that "normal" is 1.7-2.8meq/l. So center would make it 2.2 meq/l?
That 8.6 is a "solid" bright purple and I say 8.6 only because that is as high as it goes. It might off the chart.
my fish btw are behaving normally and feeding. The inverts are milling about discussing the primaries and the unusually high pH weather in there
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