野生鹦哥鱼群旁，外科鱼在珊瑚碎屑旁觅食

urgeonfish (Acanthurus lineatus) scavenge scattered coral fragments beside a dense school of feeding Bicolour Parrotfish (Scarus rubroviolaceus) on a shallow Andaman Sea reef. As the parrotfish scrape and excavate hard coral to reach algae trapped within, broken debris left behind becomes a secondary food source for other reef species, illustrating how one feeding behaviour supports a wider reef ecology food chain. 4K, wide angle, vertical wide shot, scuba diver POV. Andaman Sea, Krabi Province, Thailand.