My 5' by 5' Drop tank!!

Wait...why not collect from the wild if you could? It's not like you'd be killing anything. I'd definitely collect what I legally could. Free corals instead of someone else collecting, then selling to an LFS, then selling to you. You'd cut out 2 or 3 "middle man" groups by doing it yourself. And no jumping down my throat, I'm also a certified Rescue Diver and certified in DAN 02. Living in Tennessee makes it kind of hard to make ocean trips though.

And I think I'm missing something. Why the bloody heck would you want a tank with a drop in it, especially if you're going to cover the drop in rocks. The only advantage I see is less water volume, meaning it's cheaper. But if this is going to be a 5'x5' tank, it's going to be expensive anyways. So why not just make it a cube or similar shape?