Looking for Advice on Tank Transfer

[ReefMadness]

when I moved my stuff from house to house I made sure not to interrupt the rock in the sand until I was had 90% of the water out and discarded the rest. i made sure to add a bottle of start-up bacteria and didn't add coral or fish until the tank was at temp in an effort to keep things less abrupt. in the end I didn't lose anything and it wasn't more than a week before things looked good again.
as for sand, I used all new sand adding just enough for my wrasses and then basically added the rest over a few weeks slowly in a Tupperware so It didn't dust my tank out completely.