For me it is impossible to put my hands down in my DT, most of it is covered by lr & corals. My sand bed is only 2", with loads of nassarius, a couple of fighting conch, 1 sandsifter(the other one found it's way into my Iwaki, and became sushi), quite a few turbos, hermit crabs, 3 tile starfish, and a knobby starfish aside from the shrimps and gobies. And still the sand bed is dirty looking. My old southdown was so sweet looking,and full of live. It looked like the sand on the beach.
If southdown ever becomes available again, I will switch in a heart beat.
Nice looking tank NYreefNoob!