Nice layout. How is it secured?

nothing glued or anything. i am kinda worried it might some of the rocks may fall off. i'll probably will be rearranging the rock work after i get some life rocks. does it look secure to you mark?

Looks secure but if there's doubt, be mindful of that when stocking (fish burrowing under, a urchin moving around, etc).

most of the big rocks stay on the bottom. when i my LR this weekend. i'll put some epoxy putty to secure it.