Thanks for the response! I am using caribsea special grade too. Since I clean sand regularly, this is what I observe: if I were to shift any corals or rocks, the detritus traped beneath them is fairly significant. That's why I'm interested to know if there are other ways to manage those.
I like the look of sand bed as well, even if a natural reef normally don't have one.
Do be careful if you are going to keep sand sleeping wrasses. They may excavate under the rock and get themselves crushed under the rock.