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Old 04-17-2010, 05:38 AM   #1
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adding freshwater to replenish evaporated saltwater - how to match PH?

if i was to add freshwater to a salt water tank, the freshwater pH is usually very low, should i bring the PH back up before adding? i took a test of my water from the RO filter, it's about 6.5. everything else 0. if so, how do you bring the PH up?

my tank measures about 8.0
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Old 04-17-2010, 09:16 AM   #2
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I dont do anything to it. I just add FW and let the PWC`s buffer the water.
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Old 04-17-2010, 06:45 PM   #3
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No need to do anything to your makeup water for top offs. If it's coming from an RO filter, just use as is.
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Old 04-18-2010, 01:02 AM   #4
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RO/DI filtered water has very few ions in it, so the relative number of positive to negative is inconsequential, they will all be overwhelmed by all the ions in your saltwater.
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Old 04-18-2010, 01:15 AM   #5
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Good to know! Thanks!
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