First buy jellyfish, jellyfish individual size 5cm is the best, too big jellyfish life most of the time spent in the farm, too small jellyfish ornamental poor. Jellyfish tank according to the instructions to install and soak the tank, add seawater, natural seawater needs to be added to the jellyfish protective agent, about 24 hours of precipitation before use, artificial seawater at a ratio of 1:0.032 in the pure water to add artificial sea salt (do not add table salt), seawater salinity is generally 3.5% into the seawater and run the jellyfish tank for 24 hours after the jellyfish into the tank. The first 10 minutes of warming, and then three times after the water can be poured into the jellyfish tank (pay attention not to let the jellyfish exposed to the air), followed by the jellyfish's daily maintenance. Don't feed the jellyfish on the first day after it is put into the tank, and from the second day onwards, feed it once a day. When feeding, you can use juvenile Toyon shrimp or jellyfish special liquid feed. Each time each jellyfish fed 1/3 teaspoon of shrimp eggs hatch out of the juveniles or 2 drops of liquid feed, feeding off the pump (circulatory system), to facilitate the jellyfish ingestion, to make the end of the remaining food should be cleaned up in a timely manner, so as not to deteriorate the water quality. When the stomach cavity of the jellyfish becomes orange-red, it means that the jellyfish is already full, and you can't overfeed it to avoid the jellyfish dying. Jellyfish do not like too frequent water changes, give jellyfish water changes in the spirit of a small number of times the principle of a small number of times, change the water once a week in summer, change the water every two weeks in winter, each time you change the water only need to change off 1/10 of the total amount of water, and the water, and salinity must be the same as the original water, the change of water can be used for the hatch of the Toyon shrimp. Sea moon jellyfish can survive in 15-30℃ water temperature, the best temperature is 25℃, to avoid direct sunlight, do not put the jellyfish tank directly above the heater. Sea moon jellyfish on the light source requirements are not big, as long as it is not direct sunlight is basically no big problem, if it is the Australian spotted jellyfish must be guaranteed sufficient light.