Where can I get a reliably white sand?
I've been trying to find a sand that is white, and not off-white / tan.
Local pool store - tan
Caribsea Crystal River - off white / tan, and it kind of smells like detergent
Petsmart brand white sand - it seems to be polymer coated because the grains clump funny and they are hydrophobic, so a lot of the grains float on top of the water.
I don't mind paying more for a small quantity because I only need a little bit. I think what I want is a kind of pure silica / quartz that is either clear or frosty translucent white. Maybe size #20, like the typical pool sands.