Giant Frogfish

The Giant Frogfish is the largest commonly encountered frogfish species, capable of reaching an impressive 12 inches in length. Like all frogfish, it possesses a globular, stocky body with textured skin that can mimic sponges, rocks, and coral, making it a supreme master of camouflage. Its modified first dorsal spine, called the illicium, is tipped with a fleshy lure known as the esca, which it wiggles enticingly to attract unsuspecting prey within striking range. The Giant Frogfish can vary dramatically in color, appearing in shades of black, brown, red, orange, yellow, green, or white, and can slowly change color over a period of days to weeks to match its surroundings.

In the wild, Antennarius commerson is found throughout the Indo-Pacific, from the Red Sea and East Africa to Hawaii and the Eastern Pacific. It inhabits coral reefs, rocky substrates, and rubble zones from shallow tide pools to depths of about 70 meters. Despite its large size, it is remarkably difficult to spot in its natural habitat due to its extraordinary camouflage abilities. It is a sit-and-wait ambush predator, remaining completely motionless for hours or even days, striking at prey with one of the fastest attacks in the animal kingdom — its strike takes just 6 milliseconds.

In the aquarium, the Giant Frogfish is a fascinating and rewarding species for the dedicated hobbyist willing to provide appropriate care. Its larger size compared to other frogfish species means it requires a minimum tank of 55 gallons, with ample live rock for perching and hiding. Low water flow is essential, as frogfish are poor swimmers. The biggest challenge is feeding, as many specimens arrive only accepting live food and must be painstakingly weaned onto frozen items using feeding tongs. They will eat any tankmate that can fit in their cavernous mouths, which can accommodate prey nearly as large as themselves.