A terrarium may be a planted glass garden or a reptile habitat, and either way it is a self-contained environment that does not travel well fully assembled. Loose substrate shifts, plants get crushed, and any live animal must move separately in a safe container. Keeping the enclosure stable and its inhabitants comfortable is the key to a clean, stress-free terrarium move.
Pro tip: Bring familiar substrate into the animal's transport container to reduce stress on the trip.
Watch out: Never move a live reptile or amphibian inside the open terrarium. Use a secure, ventilated transport container.