Originally Posted by somewhatshocked
Nope. Sand is heavier.
Gotcha... that makes sense now.
Here's the tank as it is now:
I really like the look of the sand at the base of the stones, so I think what I'll end up doing is splitting the substrate with the sand in the front and in the middle of the tank, between the stones, and the aquasoil in the back towards the front at the sides.
Thanks for the help in talking me through the thought process =)