มาดูกลุ่มปลากะพงแดงกันครับ
Marine; rarely estuarine. Some species do enter freshwater for feeding. Tropical and subtropical: Atlantic, Indian and Pacific Oceans. Dorsal fin continuous or slightly notched. Spines in dorsal fin 10-12; soft rays 10-17. Three spines in anal fin; soft rays 7-11. Pelvic fins originating just behind pectoral base. Mouth moderate to large; terminal. Jaws bearing enlarged canine teeth. Palatine teeth small. Vomer usually with small teeth. Maxilla covered by preorbital with the mouth closed. Branchiostegal rays 7. Vertebrae 24 (10 + 14). To about 1 m maximum length. Most species are predators of crustaceans and fishes, several are planktivores. Most do well in aquaria, but grow too fast. Valued as food fish but sometimes a cause of ciguatera. Generally demersal, down to depths of about 450 m.