After the cultured grouper (also known as gentian spot) is cut open, the meat inside is black; The wild is white. Wild grouper is a kind of vigorous fish, which likes to eat fish and shrimp. It is said that once a wild grouper was cut open and three live lobsters jumped out of it. So its meat is particularly tender and its skin is yellow.

Dark-skinned groupers are thought to be farmed. Most of them grew up eating hormones, and their taste is obviously not as good as that of wild ones.