The short answer
Move an aquarium empty, never full. Save some tank water, bag the fish, drain the tank, and above all keep the filter media wet so your cycle survives the move. Then set it back up like a new tank at the other end. A filled tank is far too heavy and its glass can crack from the flexing, so draining first is non-negotiable.
Before the move
- Stop feeding a day ahead so the fish travel with empty guts.
- Save several buckets of tank water in clean, lidded containers.
- Bag or tub the fish in that water, in the dark, with room for air.
- Seal the filter media (sponges, biomedia) in a bag or tub of tank water — this keeps the beneficial bacteria alive.
Draining and lifting
Once fish and media are secured, drain the tank almost dry. Remove hardscape and, if you can, most of the substrate to lighten it and protect the base. Only then lift the empty tank — remember a full one weighs about a kilo per litre, see how heavy a full aquarium is. Support it from underneath, never by the rim.
Setting up again
At the new spot, place the stand, refill with the saved water topped up with fresh dechlorinated water, reinstall the still-wet filter media, and get everything running before returning the fish slowly. Because the cycled media survived, recovery is quick — but test the water over the following days. See where to put an aquarium and how to set up an aquarium. Browse gear on the filter hub.