yellow tube sea sponge - aplysina aerophoba

adria aegean aerophoba animal aplysina aplysinidae aquascape aquatic area background beautiful close closeup color colorful croatia dive diversity ecosystem filter gokova greece gapara kova holiday life marine mediterranean nature ocean oceanography outdoor photography reef saltwater sea seasponge snorkeling soufriere species sponge star structure texture travel tropical tube turkey turkish under undersea underwater vacation water wild world yellow