skates
fish
they eat trout,spotted grouper,
If you are referring to the fish known as grouper, a true vegetarian would say "No" and would not eat it. Fish is considered flesh or meat by vegetarians and therefore off limits. However, if you are asking what grouper fish eat....well, I can't help you with that answer.
A grouper eats many smaller fish and its favorite food would be fish. Grouper will also eat insects and shrimp along with almost any other small animal that comes into the grouper's path. Grouper are often eaten by larger fish.
small sharks and spiny lobsters
they eat sea little grass found in the sea floors
It depends on what "giant fish".
japense people eat lionfish and a fish called the grouper.
its a carnivore, they eat fish, octopuses, and crustaceans.
The Ephilanieus colio eats parrot fish squids ans etc.......................................
The smaller of the squid live off of shrimp, and fish. The species of the squid depends on what they eat, for example the giant squid not only eats fish but also smaller species of squid, they can also eat young sharks and whales.
The Asian polka dot grouper fish's diet consist mostly of meats. Some of the meats the polka dot grouper will eat are squid and crustaceans.