Common name: Upside-down Jellyfish

Cassiopeidae, commonly known as Upside-down Jellyfish, are a family of jellyfish characterized by their unique behavior of resting bell-upward on the substrate. Members of this family, such as Cassiopea, host symbiotic zooxanthellae within their tissues, which provide nutrients through photosynthesis. This symbiosis allows them to thrive in shallow, sunny environments often found in mangrove swamps and calm bays. They are relatively easy to keep in aquariums with stable water conditions and moderate lighting to support their symbionts.

1. 
   Common name: upside down jellyfish

   Scientific name: Cassiopea andromeda
2. 
   Common name: Upside-down jellyfish

   Scientific name: Cassiopea xamachana