A'ight folks. I put the sand in there. There's probably half a pound to a pound left of the aragonite, but I figured that it could buffer. The sand is touching probably 98% of the tank bottom. The sand is 3-4 inches deep. I could've done the whole thing 4 inches, but the tank is only 30 gallons, and it looked really weird with that much sand, so I took some out. More sand than water. Anyways, I'm letting things settle and will turn on my equipment tomorrow night. I already threw in the shrimp, and I'm not turning the skimmer on now until the Sunday after next. That should get things rollin'. Thanks for all the help.