lapin, I'm glad to hear you're reading my old thread. Hopefully, this new thread will have as much useful info in it.
Here's a pic of how the tank sits now. It has been drained and disinfected with bleach. On the back wall is the fake wall, with built in caves for the grammas. Near the top you can see the black horizontal line, where I plant to cut down the overflow-turned-refugium. This is where the new water line will be, which will just about match it up with the hood. Before, the water line was around 3 inches above the lower edge of it. This sometimes obscured fish from view when swimming near the top, and is one of the things that's been bugging me for a long time. Now, I have the chance to fix it. Lowering the water line will also give space for the wave box to make waves.
At the left end, the flow-through wall is visible. Once I get the wave box positioned, this wall will get the fake wall treatment too. That should make the whole aquarium look more natural.
On the bottom you can see the Deep Sand Bed Planter, made from dead coral skeletons. It confined the DSB to that area only, and reduced the ant farm look. This time around I plan to bury it and allow the DSB to expand beyond its walls, giving me more real estate to plant more seagrasses.
Missing is the fake mangrove root, which is out for repairs, a modification, and a new paint job. As before, it will be positioned to the right of the DSB.