hungry saltwater adult rockpool shrimp search for food in green and brown algae, black sea marine biotope aquarium

active animal aqua aquaculture aquascape aquatic atlantic background bay biodiversity brackish captive chaetomorpha closeup colorful concept conditions controlled decapoda decorative design dof easy elegans enduring environment exotic fauna fish fishkeeping free friendly instinct invasion keep life littoral macro marine native natural ocean odesa ornamental palaemon palaemonidae reef research salt sand sea shallow space substrate tank underwater vegetation water widespread wild