The Sargassum Angler, Histrio histrio, also known as the Sargassum Frogfish, features an ornate rock-like appearance with a mottled dark and light tan coloration, white speckles along the length of the body and ornate fins. They are best kept with larger and more aggressive fish, since they are not reef safe and can eat smaller fish and invertebrates present in the tank.

Diet should include live feeder fish and feeder shrimp or frozen chopped meaty preparations such as shrimp, krill, squid, clam and crustacean flesh.