For what its worth, I didn't rinse my southdown. But I did put a piece of aluminum foil cut to the same size as the tank over the sand before I started carefully filling it. When I was done I could just see through the the tank end to end. And the water was pretty darn clear after 48 hours. Good luck
Hint: If you slightly crumple the foil it will float nicely on top of the water as you fill the tank!
AquaC Remora Pro
140#s Live Rock from LiveRocks.com
Frogspawn, Hammer, Zoos, Leather Frag, and Xenia and Green Star Polyp frags from fishfreek and Alarmguy66, Thanks!
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