palaemon elegans, saltwater rockpool shrimp in black sea marine biotope aquarium, typical decapod crustacean salt water species

active adult animal aqua aquaculture aquarium aquascape aquatic atlantic background biodiversity biotope black bottom clear closeup colorful concept crustacean dark decapod decorative design elegans environment exotic fauna fish fishkeeping food free friendly funny instinct invasion invasive life littoral live macro marine native natural nature ocean ornamental palaemon reef rockpool salt saltwater sand sea search shrimp small space species stones substrate tank typical underwater water widespread wild zone