robyngunston
Fish Crazy
You would think because it costs so much more that it is.....but that is not always the case?? 
Nope, just another way of conning money out of you, its the same with gravel, Melafix (just diluted tea tree oil), rocks...
It might be more suitable for an aquarium, but if you can use play sand and it doesn't harm anything. What's the point in buying the dear stuff?
Neal