1. Grouper is a marine fish, while tiger grouper is a freshwater fish, grouper retail in the market is about 80 a catty, while the price of tiger grouper is usually around 20 to 40 yuan a catty.
2. Grouper meat is tender and delicate, rich in protein and nutrients, is one of the high-grade seafood, so the price is higher. And although tiger grouper is also a kind of high-grade seafood, the price is relatively low.
In short, grouper is more expensive than tiger grouper.