Get food-safe buckets. Empty the tank down to a few inches above the substrate. Put the water in the buckets. Put the LR
and fish in the buckets. Move tank to new location. Reverse directions.
Expect a possible sand storm when you refill. Bulk up on some floss in the filter until it clears (assume u have a HOB
Key is to do it quickly. If not, make sure everything is heated, covered and with water movement.
When you put everything back, turn the lights out for ~12-24 hrs until everyone has calmed their nerves down.