Oopps, missed a question...
The whole concept of this system was to create exceptional depth to add realism to the aquascaping and the fishes' motion. Most of the added real estate went into open areas and not reef space. The tank does look a little empty right now... but, that will change over time. I did lose a few (5 or 6) corals... but, none of my prized corals. My saddest loss was that of my blue carpet that passed about a week before the move. I attribute his demise to the fumes and dust that were generated preparing for the move. I tried to limit the fumes/dust, but, it wasn't enough, sadly.