testing after water change - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 3 Old 05-04-2007, 08:19 PM Thread Starter
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testing after water change

how long after i do a water change do i need to wait to test the water again for nitrates and nitrites
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post #2 of 3 Old 05-04-2007, 08:34 PM
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2-3 hours is plenty or even an 1 hour
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post #3 of 3 Old 05-07-2007, 07:36 PM
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I used to test about 15 minutes after the change and I saw a different reading. It shouldn't really matter as long as the water is being circulated. If the bacteria are out they are out.


Pardon the pun, but I'm hooked!
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