Close-up of clown shrimp swimming around Spanish dancer slug on seabed

shrimp spanish dancer sea slug clown shrimp closeup symbiosis underwater under water sand dark night wildlife wild life wild lebbeus grandimanus hexabranchus sanguineus rare unique strange weird species deep sea ocean prawn interact interaction slug red orange colorful shellfish crustacean uw mauritius indian ocean seabed sea bed seafloor sea floor bottom swim nobody no people animal marine environment tropical