1. Lobsterfish is a large grouper, distributed in tropical and subtropical waters. Due to overfishing and habitat destruction and other reasons, the population of lobsterfish is decreasing, so the price is high. Green grouper, on the other hand, is an easily visible saltwater fish with high production and low prices.

2. Lobsterfish is a low-fat, high-protein fish, rich in unsaturated fatty acids and minerals, such as EPA, DHA, calcium and phosphorus, which are beneficial to human health. And green grouper is also a nutritious fish, but its nutritional value is lower than the lobster, so the lobster is expensive.