It says its silica sand so it should be fine. Just make sure you rinse it really, really well.
Ahhh makes sense.. well thanks everyoneThey're talking about rinsing the new substrate before you add it to the tank. As far as cleaning it in your tank, I just swirl it above the sand it stirs up anything loose.
How does one rinse sand if there's no outside available? I live in a condo. I have aquarium sand in my 15g but would like to do pool sand in my 55g and my bathtub is all I have. Any way to avoid the compacting?