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Old 04-11-2004, 04:38 PM   #1
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Normal pH fluctuation?

I just got a pH monitor to make sure that dripping kalk does not raise my pH to an unsafe level. I know pH fluctuates at night time but what is a safe fluctuation from night to day? For example is a pH of 7.9 at night and 8.3 during the day a safe swing?
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Old 04-11-2004, 08:10 PM   #2
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Yes, I would say it's safe and common.
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Old 04-11-2004, 10:37 PM   #3
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The pH in my tank the last time I checked is usually around 7.9/8.0 in the morning and around 8.2/8.3 at the end of the light cycle.
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Old 04-11-2004, 10:55 PM   #4
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Does anyone even check pH on a regular basis? I checked mine for a few weeks after setting up the tank and after seeing it perfectly stable for quite a while I just stopped testing. It doesn't seem to have bitten me in the butt yet. What about you guys?
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Old 04-11-2004, 11:13 PM   #5
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Well I've been dripping Kalk at night and would like to drip it during the day as well however I want to make sure it doesn't push my pH too high.
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Old 04-11-2004, 11:37 PM   #6
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I use kalk for top off 24/7 and it doesn't mess with the ph, if anything it just stabalizes it.
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Old 04-12-2004, 08:08 PM   #7
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At what pH do I want to stop dripping Kalk if it raises the pH in my tank? For example right now it's dripping and my pH is at 8.37, if Kalk is dripped too fast I would imagine it can raise pH to an unsafe level which would be...?
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Old 04-12-2004, 09:22 PM   #8
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Above 8.4 or 8.45.
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