Tiger grouper is more expensive than grouper. Tiger grouper is a valuable marine fish that is widely sought after for its delicious meat and is used in dishes in high-end restaurants. Grouper is also a delicious sea fish, but the price is lower than tiger grouper. Tiger grouper, also known as tiger grouper and tiger fish, is a large marine fish from tropical and subtropical seas. The body is orange or red in color and covered with black tabby texture, hence its name. Tiger grouper is a high-end ingredient with fresh and tender meat and delicate taste, and is known as one of the top delicacies.