10-26-2011, 10:33 AM
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Originally Posted by DKRST
If it's well-washed, I don't think it will change the pH at all. It should be inert.
If you are concerned, put some water in a bucket, let sit a while, take a pH measurement, add sand to the bucket, let sit and remeasure the pH. If the pH shifts at all in your tank, it should do so slowly unless there is something really strange with the sand.
Thank you!! I didn't even think to test a sample. So, I did what you said, and sure enough, it's not changing the ph. What does that mean, to be inert? And how does that happen? You'd think if the sand was damp and had tap water in it, it would effect the ph. Thanks for your help.