Well thanks to everyone who said...."get that sand in there" as I was itching to put it in.
It's Fiji Pink Live Sand so hopefully it will help get the Eco-rox going along with the two small pieces of cured liverock that I put in there already. It ended up being about 2" all around the outside...but that will slowly lower as the sand works it's way into the center of the rock formation.
Here's a pic of the sand just after I put it in:
All the rocks have been blown off and I'm hoping that it will clear up over the next 24 hours or so. Any suggestions for removing the scum off the top of the water. I really don't want it going into my sump because I know how pick the SCWD's are and this stuff will kill it.