underwater shot of colorful flabellina nudibranch into the mediterranean sea - flabellina affinis

affinis animal antalya aquarium aquatic atlantic background beautiful berghia biodiversity blue close closeup color colorful colors common coryphellina creature critters croatia cute deep deepest diving environment europe exotic fauna flabellina flabellinidae focus gastropod image into invertebrate invertebrates isolated life macro macrolife mare marin marine mediterranean molluscs mollusk natural nature nobody nudi nudibranch nudibranchs nudybranch ocean oceanic oceanography photo photography reef salt saltwater scuba sea sealife seaslug slug slugs small smallest snorkeling the tropical under undersea underwater view water wild wildlife