Content

• To step
• Part 1 of 5: Selecting the aquarium
• Part 2 of 5: Installing the aquarium
• Part 3 of 5: Add water and screw in the aquarium
• Part 4 of 5: Selecting and adding jellyfish
• Part 5 of 5: Taking care of your jellyfish
• Necessities

Jellyfish are popular pets for decorative aquariums. Their fascinating shapes and sudden movements make them living works of art. With the right equipment, you can place exotic jellyfish anywhere in your home, even on your desk! However, it does take a lot more preparation than installing a standard aquarium, because jellyfish are delicate creatures and need a specific aquarium environment to thrive.

To step

Part 1 of 5: Selecting the aquarium

1. Find a small to medium sized tank. You can keep your jellyfish in a clean and sterile tank. You can choose to keep one to three small jellyfish in a small aquarium on your desk, at home, or in the office. You can also choose a medium sized tank that will hold more jellyfish. You can also choose a round aquarium or a high and narrow aquarium.
   • A round aquarium with a flat bottom is ideal, because then the jellyfish can float well in the aquarium water. This is essential for the health and happiness of your jellyfish.
2. Buy a jellyfish aquarium set. The other option is to buy an aquarium set made especially for jellyfish. These aquariums are usually small and round and are intended for one to three small jellyfish. You can also buy a tall, narrow tank if you want more jellyfish. You can purchase jellyfish aquarium kits online or at a local pet store.
   • Remember that jellyfish aquarium kits are not cheap, they can cost $ 350-600. You can try using a regular aquarium to save money.
3. Get the other supplies. Most jellyfish kits come with the essentials for installing the aquarium. If you are using a fish aquarium to house your jellyfish, you will need to buy a few other things yourself, including:
   • An air pump
   • A bottom filter plate
   • An air hose
   • Air tube
   • Substrate for the bottom of the aquarium, for example, glass beads
   • An LED bulb
   • An LED remote control (optional)

Part 2 of 5: Installing the aquarium

1. Find a flat, elevated surface that doesn't get much sunlight. Jellyfish do well in a dark environment. Make sure to place the aquarium on a flat, elevated surface in your home or office, in a location that does not get much sunlight, and that is away from heat sources and electrical equipment.
   • A low table in a dark place in your house or on top of a desk would work well. You can also buy a small wooden stand for your home or office and place the aquarium on it.
2. Install the filter plate and air hose. Connect the filter plates together and place the air hose in the center of the joined filter plate. Depending on which filter plates you buy, the plate can be delivered in several small parts or two larger parts. The air hose should end up in the center of the tank so that it can circulate air throughout the tank.
   • You may need to cut part of one of the plates to make it fit. You can do this with scissors or with an X-ACTO knife.
   • Place the filter plate and the air hose in the aquarium. The plates should cover the bottom of the tank and fit snugly when you slide it into the tank.
3. Place the substrate. Substrate helps to hide the filter plate in the aquarium. It is better to use glass beads instead of sand or gravel. Gravel can be dangerous for your jellyfish. Place the beads in the aquarium by hand so that they do not break or damage the aquarium.
   • Purchase glass beads at a local sinkel store or on the Internet. Glass beads the size of jelly beans are an ideal substrate for your aquarium. Fill the tank with at least one layer of substrate, or two inches of glass beads for a medium size tank.
4. Connect the air hose to the air pump. Once the substrate is in the tank, you can connect the air hose to the air pump. Do this through the air tube.
   • Place the air tube in the air hose so that it is a few centimeters in the hose. Then connect the air tube to the air pump. This will allow air to enter the aquarium through the tube.

Part 3 of 5: Add water and screw in the aquarium

1. Add salt water to the tank. Jellyfish are saltwater animals, so you can only use salt water in the aquarium. You can make your own salt water with marine salt or buy ready-made salt water from the pet store. Do not use sea salt or salt for consumption!
   • To make salt water for your aquarium, you can use aquarium salt or ionic salt. Dissolve the salt crystals in reverse osmosis filtered water or distilled water, taking care not to leave large lumps of salt in the water. Do not use tap water, as it contains elements that can be harmful to your jellyfish.
   • Once you've added the salt water, spread out glass beads with your hand so that they are evenly distributed on the bottom of the tank.
2. Connect the air pump and LED light to an electrical outlet. Once you have done this, you should turn on the tank for at least 12 hours. During this period the water should change from cloudy to clear.
   • Some jellyfish owners put the jellyfish directly in the aquarium and then change part of the water daily. The water changes help to keep the ammonia level in the aquarium low. However, running the tank before adding the jellyfish will ensure that your pets stay healthy in their tank.
3. Check the ammonia, nitrite and nitrate values. You can purchase aquarium test kits that allow you to check the aquarium water for these elements. Do this when the aquarium is turned in and the water in it is clear. The test should show an increase in the ammonia value followed by an increase in the nitrite value while the ammonia value decreases. Next, nitrate will appear, while the nitrite value decreases.
   • Ideally you end up with 0.0 ppm ammonia and nitrate in the aquarium. You can have a low nitrate level, around 20 ppm. Once these substances are at this value, you can place your jellyfish in the aquarium.

Part 4 of 5: Selecting and adding jellyfish

1. Buy jellyfish from a reputable pet store. Search the Internet for pet stores that specialize in jellyfish and offer a money-back guarantee. Most stores that sell jellyfish have ear jellyfish and catostylus mosaicus, but you can also find other types for your tank. The jellyfish are shipped to you lifetimes in plastic bags.
   • You can also buy jellyfish in person from a pet store. Talk to the store employees to make sure they know about the jellyfish they are selling. Buy jellyfish that float and move in the tank and that have clear, healthy-looking tentacles. Pet stores often have a specialized department for jellyfish and other marine animals.
   • The ear jellyfish does best in household aquariums. Eurasian jellyfish are seasonal animals and usually live for six to twelve months.
2. Look for jellyfish of approximately the same diameter and size. Your jellyfish aquarium is a closed system, so you shouldn't stuff it with too many jellyfish or jellyfish of different sizes. The larger jellyfish will grow bigger than the small jellyfish and overpower them. The small jellyfish will shrink as a result and will not thrive as well as the larger jellyfish.
   • Also buy only one type of jellyfish for your aquarium. You can decide to keep, for example, only ear jellyfish or only catostylus mosaicus in your aquarium. Most jellyfish species thrive when kept in an aquarium only with their own species.
3. Slowly acclimate your jellyfish to the aquarium. Your jellyfish will be delivered in clear plastic bags. Start by making sure the tank is turned all the way in and has a healthy nitrate level. You then need about 20 minutes per bag of jellyfish to get your new pets used to their tank.
   • Place the sealed bag of jellyfish on the water surface of the aquarium for 10 minutes. This helps to align the temperature of the water in the bag with the temperature of the aquarium water.
   • After 10 minutes, open the bag and remove half of the water with a clean cup. Then add aquarium water to the bag, making sure that the amount of water you add is equal to the amount you removed.
   • After another 10 minutes, you can slowly release your jellyfish into the tank. Use an aquarium net to gently release your jellyfish. Do not put them in the aquarium all at once, this can shock them.
4. Check if your jellyfish are pulsating and moving in the tank. It may take a few hours for your jellyfish to acclimate to their new home. Once they are comfortable, they will pulse and move around the tank, usually three or four times a minute.
   • Monitor your jellyfish for the next few days to make sure they are moving and pulsating at ease in the aquarium.
   • If your jellyfish appear to be folded inward, a process called eversion, the water temperature may not be ideal. The water temperature should be 24-28 degrees Celsius for jellyfish. You may need to adjust the water temperature and retest your water to make sure the ammonia, nitrite, and nitrate readings are correct.

Part 5 of 5: Taking care of your jellyfish

1. Feed the jellyfish live or frozen baby brine shrimp twice a day. You can buy live or frozen baby brine shrimp online or at a pet store. You should feed your jellyfish twice a day, once in the morning and once in the evening.
   • Live brine shrimp can be kept in the refrigerator for up to two weeks. You can feed the jellyfish through a small opening in the tank to avoid getting stung by their tentacles. The jellyfish should catch and eat their food themselves.
   • Do not overfeed your jellyfish as this can affect the quality of the aquarium water. If you have smaller and larger jellyfish in your tank, you most likely cannot encourage the small jellyfish to grow and stay healthy by overfeeding them.
2. Change 10% of the water every week. To maintain the water quality of the aquarium water, you should change 10% of the water once a week. This means that you remove 10% of the water from the aquarium and replace it with fresh, salt water.
   • Don't forget to check the water quality after every water change. Salinity should be between 34 and 55 ppt, the closest to natural sea water. You must also confirm that the ammonia, nitrite and nitrate values ​​in the water are good.
3. Remove jellyfish that are too big for the aquarium. With proper care, your jellyfish should reach a healthy size. You can avoid a crowded tank by keeping only a few jellyfish in the tank at a time. If your jellyfish seem to be getting too big for the tank or you think the tank is too full, you may need to remove one or more jellyfish. Do not release the jellyfish you remove into the wild, through the sea or any other body of water. This is illegal and endangers the jellyfish.
   • Instead, contact the seller where you bought jellyfish to find a new home or new caretaker for the jellyfish.

Necessities

• Air pump
• Bottom filter plate
• Air hose
• Air tube
• Substrate for the bottom, such as glass beads
• Salt water
• LED lamp
• LED remote control (optional)