freshwater jellyfish craspedacusta sowerbii, underwater photograph

also animal animals aquarium aquatic are beautiful biodiversity cnidaria colorful crasapedacusta craspedacusta creature danger dangerous environment fauna fish fluorescent freshwater habitat hydromedusae hydrozoa invasive invertebrate invisible jelly jellyfish jellyfishes known lake life live medusa mystic nature ocean organism pain photograph photography poison poisonous polyp sea sowerbii sowerbyi species swim tank that tiny toxic transparent tropical under underwater water white wildlife world