Type of substrate decided for me...

[Aquattro]

Well, I'm finished hooking up all my pumps, and they've decided that my tank will stay bare-bottom. I have 2 streams and a seaswirl from the return, and no way is any type of substrate going to stay put.
On the upside, the fish love the current, and the corals don't look too offended either.
Kinda funny watching hermits flying across the bottom of the tank