If you are planning a move or simply want to move your jellyfish aquarium, you should do it the right way.
You can take your jellyfish out of the aquarium for 1 – 2 days without any problems. Place the jellyfish, with plenty of water from the aquarium, in a normal fish transport bag. This should contain no air if possible (just as you received your jellyfish). At best, you use a second bag for safety.
If the jellyfish are exposed to a longer transport, you should transport them in an insulated container (e.g. polystyrene box).
If the aquarium is changed at home, you do not have to take all the water out of the aquarium.