Kind of pointless to use live sand because the bacteria in it is saltwater bacteria. You can buy some regular sand for about half the price and put that in your tank with no difference.
if you are paying 24$ a bag for special freshwater sand and its not real black sand.... then your lfs LOVES you....
go to a pool supply store and ask them for a bog of sand... they will have a few different "grades" (how coarse it is aka the size/shape of the grains of sand)..