I don't know where you're getting that info...I've never had issues with PFS. And it definitely can run in darker colors.So which one guys ?!?!
- pool sand doesn't change the pH but it it's white and can damage the gills
- play sand has the color(natural) that I want but doesn't have the texture(too small grain)
- construction sand(my favorite) has the color and texture(sugar grain) that I want but I don't know how safe it is
So again....which one, I really need some ideas as I need to start the tank ASAP......
Thanks a lot guys, really appreciate it.

