My first three saltwater tank had Special Grade sand. After starting the fourth one, I went bare bottom. Loved being able to clean up and poop I saw at the bottom of the tank. I started up a 40B yet again but this time with an AquaClear filter and added sand. The tank has corals, 2 turbo snails and 1 Helfrichi firefish. I forgot how much turbo snails poop . So what is your thoughts on sand or no sand?