Bare bottom or not?

[FitoPharmer]

Originally Posted by MarkoD

Right now I have about an inch of sand/crushed coral mix.

I have over 200 hermit crabs and various snails and shrimp.
I have 4 mp40s all on full blast.

Junk still seems to settle. Should I be vacuuming the sand? Some say its good to vacuum, some say its bad to disturb the sand.

I have never owned a sand bed that did not cause the water to go milky and have sand fly everywhere from a siphoning mishap. Even after x20 washes. But I prefer the finer gain types. I found my sand always looked dirty until I owned a conch.