The difference between tilefish and yellowtail fish is:

1. Tilefish is a warm water and warm-temperature middle and lower-level fish, which is distributed from the southern Philippines to China, North Korea and Japan. It is produced in the southern sea area and along the coast of China.

2. Yellow-finned fish, whose scientific name is yellow-finned seabream, belongs to the class Teleost, order Perciformes, family Breamidae, also known as yellow-legged fish, etc. It has a tall oval body, flat sides, and a large head.