Jellyfish as a Pet: A Complete Guide 2025

Jellyfish are mesmerizing and unique creatures that many people are now considering as pets. While they require special care and equipment, keeping jellyfish as a pet can be a rewarding experience. This guide will walk you through everything you need to know about owning pet jellyfish, from selecting the best species to caring for them properly.

Why Should You Have a Jellyfish as a Pet?

Keeping a jellyfish as a pet is a unique and mesmerizing experience, but they offer several unique benefits that make them an intriguing choice for aquatic enthusiasts. Here’s why you might consider keeping a jellyfish as a pet:

1. Aesthetic Appeal

Jellyfish are elegant and calming to watch as they float gracefully in the water. Their bioluminescent glow under LED lighting makes them a stunning addition to any space.

2. Low Maintenance Compared to Other Aquatic Pets

Unlike fish, jellyfish don’t require decorations, rocks, or plants in their tank. With a properly set up pet jellyfish tank, maintenance is relatively simple.

3. A Unique Pet

Owning a jellyfish is rare compared to having a dog, cat, or even a fish. They are fascinating creatures that will surely spark conversations with guests.

4. No Need for Companionship

Many pets require social interaction, but jellyfish do not. This makes them ideal for those who want an independent pet that doesn’t need constant attention.

5. Educational Value

Keeping a jellyfish as a pet can be a great learning experience about marine life, ecosystems, and the delicate balance required to sustain these unique creatures in captivity.

Can You Keep a Jellyfish as a Pet?

Yes, you can keep a jellyfish as a pet, but they require specific care and equipment. Unlike traditional fish, jellyfish need a special tank with a gentle water flow to keep them from getting stuck in corners or filters. Real jelly fish tanks are designed to keep jellyfish suspended in the water safely. Additionally, they require precise water conditions, a controlled diet, and regular monitoring to ensure their well-being.

Choosing the Best Pet Jellyfish

Not all jellyfish species are suitable for home aquariums. Some are highly venomous, while others require complex care. Here are the best jellyfish to have as pets:

• Moon Jellyfish (Aurelia aurita) – The most popular choice due to their docile nature and ease of care. Typically costs between $30 and $100 per jellyfish.
• Blue Small Jellyfish – A smaller and visually stunning option, usually priced around $40 to $120.
• Pet Immortal Jellyfish (Turritopsis dohrnii) – Famous for its ability to revert to a juvenile state, with prices ranging from $50 to $200 depending on size and availability.
• Tiny Jellyfish – A great option for smaller tanks, usually available for $25 to $80.

Species to Avoid

Some jellyfish are not suitable as pets due to their venom or care requirements:

• Box Jellyfish as a Pet – Highly venomous and dangerous, often illegal to own.
• Box Jellyfish Pet – Not recommended due to deadly stings, with costs exceeding $500, but generally not available for private ownership.

Setting Up a Pet Jellyfish Tank

Jellyfish require a special aquarium setup to thrive. Traditional fish tanks do not work for jellyfish since they lack a central nervous system and can get trapped in filters.

Choosing the Right Jellyfish Tank

• Real Jelly Fish Tank – Designed to keep jellyfish suspended in water flow, priced between $200 and $1000.
• Large Jellyfish Aquarium – Ideal for keeping multiple jellyfish, starting at $500 and up.
• Pet Jellyfish Tank – Comes with a built-in filtration system and gentle water currents, typically costing $250 to $800.
• Buy Jelly Fish Tank – Always ensure the tank is designed for jellyfish before purchasing.

Alternative Options

If you are not ready for live jellyfish, consider a fake jellyfish tank, which mimics the movement of real jellyfish without maintenance.

Buying Live Jellyfish

If you want to buy jellyfish, you need to find a reputable supplier. Some common places include:

• Pet Jellyfish for Sale – Online stores specializing in jellyfish care.
• Live Jellyfish for Sale – Ensure the seller provides proper shipping methods.
• Jellyfish Sale – Compare different sellers to find the best price and healthiest specimens.
• Jellyfish Buy – Always check the credibility of the seller.
• Jellyfish Near Me – Local aquarium stores may carry jellyfish.
• Pet Jellyfish US / Pet Jellyfish UK – Available in specific regions through specialty aquarium shops.
• Petco Jellyfish – Some branches may carry jellyfish or specialized tanks.
• Buy Freshwater Jellyfish – Freshwater jellyfish exist but are not commonly kept as pets.
• Buy Real Jellyfish – Ensure the supplier follows ethical collection and breeding practices.

How Much Does a Pet Jellyfish Cost?

• Moon Jellyfish Price – Typically between $30 and $100 per jellyfish.
• Blue Small Jellyfish – Costs range from $40 to $120.
• Pet Immortal Jellyfish – Prices vary between $50 and $200.
• Tiny Jellyfish – Can be purchased for $25 to $80.
• Pet Jelly Fish US / Pet Jelly Fish UK – Prices may vary by region.
• Real Jelly Fish Aquarium – A high-quality tank can cost $200 to $1000.

Feeding and Caring for Your Pet Jellyfish

Diet

Jellyfish require a specific diet to stay healthy. Most pet jellyfish eat:

• Brine shrimp – The most common food source.
• Specialized jellyfish food – Available from aquarium suppliers.

Water Conditions

Jellyfish need clean, saltwater environments:

• Temperature: 60-75°F (15-24°C)
• Salinity: Similar to natural seawater
• Water Flow: Gentle, circular flow to keep them suspended

Is It Cruel to Keep Jellyfish as Pets?

The ethics of keeping jellyfish as a pet is a debated topic. Unlike fish, jellyfish lack a brain or pain receptors, making it unclear if they suffer in captivity. However, they require specialized care, and improper setups can harm them. If you are considering owning jellyfish, ensure you have the correct tank, food, and knowledge to provide a healthy environment.

How Long Do Pet Jellyfish Live?

The lifespan of pet jellyfish depends on the species and care:

• Moon Jellyfish Pet – 1 to 2 years with proper care.
• Pet Immortal Jellyfish – Can theoretically live indefinitely under the right conditions.
• Tiny Jellyfish – Lifespan varies but usually under a year.

Conclusion

Owning pet jellies can be a unique and rewarding experience if done correctly. Jellyfish as a pet require a specialized environment, but with the right setup, they can thrive. Before purchasing, make sure to research pet jellyfish tank options, proper care methods, and ethical considerations. Whether you choose to buy real jellyfish or opt for a fake jelly fish tank, this guide will help you make an informed decision.