giant green anemone or ( anthopleura sp.) in a marine aquarium

dinoflagellates singlecelled zoochlorellae zooxanthellae anthozoa polyp anemones anemone animalia cnidaria hexacorallia actiniaria anthopleura aquatic coastal fauna giant green invertebrate invertebrates marine moonglow mouth nature ocean piscivora predator sea sealife tentacle tidal pool tropical underwater wildlife xanthogrammica