close-up jellyfish, medusa in fish tank with neon light. jellyfish is free-swimming marine coelenterate with a jellylike bell- or

abstract animal aquarium aquatic backdrop background beautiful beauty bell biology black blue body closeup coelenterate concept coral deep design environment fish flight flow free freeswimming freedom freshwater happy hobby jellyfish jellylike light lovely marine medusa motion natural nature neon ocean outdoor pattern saltwater saucershaped school scuba sea seagull shape smooth student summer swim tank transparent typically undersea underwater university water wave wild wildlife