jellyfish in a round tank

animal aquarium aquatic aurelia aurita background biology blue calm calming captive captivity captured circle clear colony coral creature creatures dark drift drifting elegance elegant enclosed enclosure fish fishes float floating flowing glow glowing grace graceful group hue hues illuminate illumination invertebrates jelly jellyfish jellyfishes life marine mesmerise mesmerising mesmerize mesmerizing moon moonjelly nature ocean pacific reef round school science scyphozoa sea sealife shape sting stinger stingers swim swimming tank tentacle tentacles translucent transparency transparent tropic tropical underwater water wildlife zoo