红唇鹦哥鱼成群栖息在硬珊瑚礁生态系统上方

up school of female Ember Parrotfish (Scarus rubroviolaceus) reveals the bright red lip band and exposed dental plates that give the Redlip Parrotfish its common name. Fused beak like teeth scrape hard coral to reach algae trapped inside, a bio-erosion behaviour central to reef ecology. Dark reddish brown initial phase colouring dominates the frame, with only one or two blue terminal phase males visible among them. 4K, wide angle, vertical close up, scuba diver POV. Andaman Sea, Krabi Province, Thailand.