upside-down jellyfish - cassiopea andromeda - mangrove jellyfish symbiotic with algae, lying on the bottom in a bright place for

upsidedown jellyfish cnidaria scyphozoa rhizostomeae cassiopeidae invertebrate andromeda upside down jelly medusa invasive painful sting beautiful wetland cassiopea whitespotted sea life photosynthesis microalgae symbiotic actinia underwater coral reef anemone marine aquarium nature ocean wildlife animal tropical wild exotic background saltwater undersea tropic aquatic