How long can jellyfish sold in aquariums live?

Expert Answer: The lifespan of jellyfish sold in aquariums is generally around 6 months. Since jellyfish sold in aquariums are small jellyfish, their lifespan is generally only a few months. Additionally, some aquariums sell jellyfish in small dishes with a lifespan of only about a month, and others even shorter. However, different species of jellyfish can survive for different periods of time. The specific length of time they survive depends on the species of jellyfish purchased. Knowledge extension: Jellyfish purchased from the aquarium should be confirmed as non-toxic, as most jellyfish are poisonous. If the jellyfish is confirmed to be toxic, you should wear protective measures when handling it. Jellyfish all grow in seawater and seawater must be prepared for them when breeding artificially. If heis no sea water, you can use fresh water and sea salt to make sea water. They are sensitive to changes in water temperature and water temperature must be maintained at 25°C during artificial rearing. They are carnivorous animals and can choose to feed on fish eggs, shrimp eggs, plankton, etc.