Does Safety Absorbent cause Ph to drop? - The Planted Tank Forum
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post #1 of 3 (permalink) Old 01-30-2014, 08:57 PM Thread Starter
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Does Safety Absorbent cause Ph to drop?

Title says it all....
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post #2 of 3 (permalink) Old 01-30-2014, 10:26 PM
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I've heard it can strip hardness out of water, which could lead to a pH drop. It's not really the SafeTSorb directly dropping the pH, but it's removing substances that can prevent a pH drop.

I recently picked up a bag, and I've got a little bit in water, if I remember I'll test it tonight and compare it to a bucket of aged water and see if there is any notable difference. I think my water is pretty soft to begin with, so it might not be noticeable.
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post #3 of 3 (permalink) Old 01-31-2014, 01:49 AM
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It caused my KH to drop which caused the PH to drop/swing. I started adding baking soda to keep the KH up to stabilize the PH. You can also use oyster shell grit in the filter which I tried but didn't know how much to use .. probably wasn't enough. It was just easier to adjust my dose of baking soda than fool with the oyster shell grit.
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