saltwater rockpool shrimp, palaemon elegans, searching for food climb on a stone with rich vegetation of green and red algae

actinia active adult algae anemones animal antenna aqua aquaculture aquarium aquascape aquatic atlantic background biodiversity biotope black clear climb closeup colorful concept covered crustacean decorative design ecology elegans environment equina exotic fauna fishkeeping food free friendly funny green instinct invasion invasive life littoral live macro marine natural nature ocean palaemon red reef rich rockpool saltwater sand sea searching shrimp space stone substrate tank underwater vegetation water widespread wild zone