The graysby is light brown to gray in color, with small brown or red spots covering its body. An additional three to five spots often appear along the base of its dorsal fin.
This species of grouper is found in coral reefs, often hiding in caves and crevices. They are most active at night when they come out of their hiding spots to feed.
Graysbys feed on small fish and crustaceans such as crab and shrimp.
The graysby can grow up to 16 inches.
Its range includes the Western Atlantic Oceans from North Carolina to southern Florida, as well as the Gulf of Mexico and the Caribbean Sea.
This species is not believed to be threatened.
Graysbys are preyed upon by large reef predators such as barracudas and sharks.
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