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Discussion Starter · #1 ·
Apparently I can't search on "PH" so apologies if this has been posted before.

Does pool filter sand have any effect on the tank's PH? I want to switch to it but this is a SA tank so I actually don't want it to buffer the water up.

I put some in a cup with water and tested it vs. a control cup and it looks like it's higher but it's just a cheapo test strip (I haven't bought any test kits in a long time). Does anyone have any real experience with this to say for sure?
 

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it wont (and shouldn't) affect your water at all since silica has 0 buffering capacity. my guess is that the test strips arent accurate and thats whats giving you the false readings.
 
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