Live rock on eggcrate, sand or on bottom?

[Nano]

also if you are using dry rock for you aquascape, I saw a video on youtube of someone using a hack saw to cut flat spots onto the rocks where they would sit on the glass, I think that makes things a bit more stable

[jtbadco]

I use the bottom halves of oyster shells as a barrier between the rock and the glass. That way if a sand sifting critter uncovers them they still look natural