Freshwater Moray
Originating from mangroves in East India and also found around the world, freshwater moray eels are also commonly kept in freshwater home aquariums. These small eels may reach a length of up to 24 inches. Their diet primarily consists of varieties of fish and mollusks. Although not deadly to humans, their bite produces a venomous sting which may affect the victim for at least a few days after contact.
Snyder's Moray
Regions of the Pacific including the Great Barrier Reef and parts of Hawai'i and Guam are home to this unique moray eel. Known for its incredibly tiny size, Snyder's moray eel may reach lengths of no more than 5 inches. Unlike other eels who make their home in bays, Snyder's moray eels are primarily found in coral reefs. Their size and temperament combined makes them harmless to humans.
Slender Giant Moray
Found in the western Pacific and in regions of Australia, slender giant moray eels make their homes on the muddy floor of the ocean or bay areas. Truly living up to their name, these creatures are the longest of the moray eel family -- reaching lengths of up to 13 feet. Using their large mouths, they primarily feed on crustaceans and small fish. This type of eel is potentially harmful to humans.
Giant Moray
Giant moray eels are common in lagoon and other large reefs. Although not as long as the slender giant moray, these eels are larger in sheer body mass -- often reaching a weight of up to 30 kilograms. Primarily feeding on small fish and other creatures, the giant moray resides at the top of the reef food chain. This enormous creature will attack humans only when provoked. Humans have reported ciguatera poisoning from eating the flesh of the giant moray.