1. Appearance: Red-tailed snapper is large, with dark blue back, silvery white abdomen and red tail; The bald head is small, the whole body is silvery white, and there is no obvious color difference.
2. Living habits: Red-tailed snapper belongs to freshwater fish, living in freshwater environments such as rivers and lakes, and is a carnivorous fish; Cephalotaxus fortunei is a kind of marine fish, which lives in the ocean and likes to swim on the water surface, feeding on plankton and small fish. It is an omnivorous fish.