野生海葵鱼捕食硬珊瑚，留下暴露的碳酸钙外骨骼，造成生物侵蚀

triggerfish (Balistoides viridescens) feeds on hard coral in a fully inverted, upside down posture, a technique that lets this coral predation specialist reach prey tucked into awkward reef crevices. Bluefin trevally (Caranx melampygus) and moon wrasse (Thalassoma lunare) circle nearby, drawn by the bioerosion debris the feeding produces. The close framing captures the fish's scale pattern and warning colouration in full detail. 4K, wide angle, horizontal close up, scuba diver POV. Andaman Sea, Krabi Province, Thailand.