The Assorted Anglers can range in color from tan to grey to brown. Their body can also change color to blend with the surrounding environment over time. They require large amounts of live rock in a 30 gallon or larger aquarium. When first introduced into the aquarium, live saltwater feeder shrimp should be used to entice this fish to eat. An angler may eat any small inhabitant of the tank (crustacean or fish) that is lured into its mouth with the use of an esca (modified first dorsal spine) that looks like a small, tasty fish. It will accept most meaty meals including feeder fish and shrimp.