安达曼海礁墙旁，成群的小丑炮弹鱼环绕着巨大的桶状海绵

barrel sponge (Xestospongia testudinaria) growing from a reef wall is enveloped by pygmy sweepers (Parapriacanthus ransonneti) schooling as predator avoidance on an Andaman Sea reef, demonstrating coral reef biodiversity across sessile and pelagic species. Barrel sponges are among the longest-lived organisms on Indo-Pacific reefs, capable of surviving for centuries where substrate remains stable. 4K, horizontal, medium shot, handheld, underwater scuba diver POV. Ko Haa, Mu Ko Lanta National Park, Andaman Sea, Krabi Province, Thailand.