Upside Down Jellyfish – Size M (2.5″ – 3.5″ Diameter)
This live aquarium display features Cassiopea xamachana, a popular species of upside down jellyfish known for its vibrant, soft blue and pink coloration and gentle, floating movement.
Perfect for small to medium-sized freshwater or saltwater aquariums, this jellyfish thrives in calm, well-lit environments with stable water parameters.
| Size | 2.5″ – 3.5″ Diameter |
|---|---|
| Species | Cassiopea xamachana |
| Environment | Calm, well-lit aquarium (freshwater or saltwater) |
| Lifespan | Up to 6 months with proper care |
FAQ
How long does a Cassiopea xamachana jellyfish typically live?
A Cassiopea xamachana jellyfish typically lives up to 6 months with proper care and stable water conditions.
What kind of water conditions does this jellyfish need?
This jellyfish requires calm, well-lit aquarium conditions with stable temperature and water parameters. It thrives in freshwater or saltwater setups with minimal current.
Can this jellyfish be kept with other aquarium inhabitants?
Please contact customer service


James Hart –
The upside down jellyfish arrived healthy and floated beautifully in my 10-gallon tank. It’s a striking addition that adds a peaceful, natural look. I keep it in a quiet corner with soft lighting and it’s been active for over two months.
Victoria Fisher –
It’s a lovely visual treat. The color is soft and vibrant, and it moves gently without disturbing other fish. I’ve maintained stable water levels and it’s been thriving for about 4 weeks.
Sonia Paterson –
I was impressed by how easy it was to set up. The jellyfish stays in place and looks stunning under the aquarium light. It’s a great centerpiece for a small tank.