moving a tank and fish

[TheReefGeek]

Yeah it would depend on the tank size, and the sandbed size.

I use DSBs so they have to be removed.

If you do remove the sand, keep some of it undisturbed but the rest I would probably clean/rinse because otherwise you could release a lot of detrius. Of course it depends on how much detrius is in there, which depends mostly on how long the tank was setup for.