Upside Down Jellyfish For sale

Upside Down Jellyfish

Regular price $18.00 Sale

Cassiopeia andromeda -Captive Bred

1-3 inches in bell diameter. Upside Down Jellyfish are known for living their lives upside down, peacefully farming algae in their tentacles. They use this algae (which gives them their golden-tan color) to provide food for themselves. These jellyfish are found all throughout the world, in tropical, shallow lagoons. Our particular species, Cassiopeia xamachana, is from the Florida Keys and Caribbean. 

Upside Down Jellyfish actually don't prefer your traditional jellyfish tanks. They enjoy tanks with wide, flat bottoms, where they can sit. A ten gallon aquarium with a divider between the filter and the jellies is typically enough to keep them happy. 

Because they have a symbiotic relationship with zooxanthellae algae, these jellies will need full spectrum lighting. Upside Down Jellyfish that are not well lit will eventually revert to their natural blue coloration. Despite the fact that the algae provides some nutrition, Upside Down Jellies will still require feeding. Need a full spectrum light for your jelly tank? We have them available here: Kessil A80 LED light

Upside Down Jellyfish do have some noticeable sting. It can cause minor irritation and itching. Exercise caution when handling your jellies. 


Quick Care Stats 

Natural Habitat  Mangrove Swamps of Florida and the Caribbean
Care Level Beginner, hardy and resilient 
Salinity 1.023 SG
Temperature 77 F
Recommended Aquarium Orbit 20, Neo 4 & 16, Medusa Desktop, Omni 9 & 15
Main Diet  Baby Brine Shrimp and Light
Optional Diet "snacks" N/A
Sting May cause minor irritation, exercise caution when handling
Life Span 1-4 years 
Special Requirements Photosynthetic, require full spectrum lighting
Can be kept with Lagoons, Blubber and Fried Egg Jellies



All orders of live jellyfish will be shipped with our $38 priority flat rate service. Size is approximate. Jellies are measured in diameter from tip to tip.