southdown or playsand whats the difference?

[firefighterbryan]

Does anybody know what the difference is between southdown an playsand?Where can i get southdown.

[RicksReefs]

southdown is an aragonite sand mined off the shores of the bahamas (sold by caribsea @ LFS),most playsand is silica based,
& has been implicated in diatom blooms,& has no buffering
capacity.

[smariner]

HAHAHA, on the southdown bag the label says it's southdown play sand. So, it is indeed playsand. I think you're referring to the silica based playsand and I wouldn't recomend using that due to it not having any buffering capability. Try and find southdown play sand at your local Home Depot or talk them into ordering you some.

hope this helps,
chadb