Southdown Sand In Canada

[smokinreefer]

any media, once colonized by bacteria will become beneficial...

the hype around southdown is that it is a fine aragonite sand that was available at HomeDepot for a FRACTION of the cost of what sugar/oolitic aragonite sand was being sold for at your Local Fish store.

it is also the perfect medium for a Deep Sand Bed, which had reached its highest popularity at the same time this stuff was available.

Hope that helps, if you want more info... just do a search on "southdown".