220gal build

[jerseyboy]

im in the process of setting up a 220 gal reef tank. i have seen a few videos on floating rock aquascape. where you support the rock a few inches off the bottom to make a cave effect. if anyone has tried this id be interested in how you went about the process and materials used

[Bonanza]

Only way I've seen it done is drilling into the rock and using epoxy to secure acrylic rods.