Black groupers inhabit coral reefs and rocky bottoms ranging from 19 to 108 feet (6 to 33 meters) in depth. They are solitary until spawning season, where they gather in large numbers. Black groupers are ambush predators, utilizing their large and powerful jaws to suck up their prey. They are preyed upon by sharks, and smaller black groupers are sometimes hunted by moray eels and larger groupers. The black grouper exhibits several color phases that can make it difficult to identify, turning a pale grey when stressed, but is distinguished by the rectangular dark blotches along its flank and black edge of the caudal fin.

Blacktip shark
The blacktip shark is a sturdy, gray, medium-sized shark characterized by the black markings on the tips of its fins and a distinct white ‘z’