Why is grouper bad for you?

Chef's answer
High mercury levels in these giant fish have caused EDF to issue a consumption advisory. Groupers can live to be 40 but only reproduce over a short amount of time, making them vulnerable to overfishing.
Frequently asked Questions 🎓
While goliath groupers really aren't any danger to humans, they will pretty much take what ever they want, like that fat bully that shoves kids into lockers and takes their money, then goes home and cries because he's lonely.
Any reef fish can cause ciguatera poisoning, but species such as barracuda, grouper, red snapper, moray eel, amberjack, parrotfish, hogfish, sturgeonfish, kingfish, coral trout, and sea bass are the most commonly affected..
The goliath grouper, which, according to FMNH, has been known to stalk humans and "conduct unsuccessful ambushes," took off with Sabir's spear and gun trailing behind.
Surprisingly, goliath grouper feed mostly on crustaceans and small baitfish. To date, goliath grouper stomach content analysis has documented that about 85% of their diet consists of crustaceans, mostly crabs. The remaining 15% primarily consists of slow-moving fishes such as burrfish, catfish and toad fish.
Barotrauma can cause a fish's eyes to pop out of its head and its stomach to be pushed out of its mouth, according to Chris Lowe, a marine scientist at California State, Long Beach. ... The problem occurs in fish that have a swim bladder, an internal balloon that helps them control their buoyancy.
They do not have many teeth on the edges of their jaws, but they have heavy crushing tooth plates inside the pharynx. They habitually eat fish, octopuses, and crustaceans. Some species prefer to ambush their prey, while other species are active predators..
Goliath grouper are relatively long-lived. The maximum known age is 37 years and scientists think they may live to 50 or even 100 years. There are several other reasons why goliath grouper are vulnerable. They are relatively slow growing and take five to seven years to reach sexual maturity.
A few more cooking questions 📍