The Chrysurus Angelfish, otherwise known as the Ear Spot Angelfish or the Gold Angelfish, are known for changing color with maturation.
As juveniles, they are black in body with white and blue alternating stripes, and their elongated pectoral and dorsal fins are curved with blue trimming.
Once they are mature, their faces are brown with mottled-blue markings, and they retain the alternating black and white striping on the lower end of their bodies. The main difference between the juvenile and the adult Chrysurus Angelfish is the coloring of the tail fin. The juvenile Chrysurus has a striped blue-black-white fin, while the adult has a bright yellow fin with a white marking.
The best housing environment for the Chrysurus Angelfish would be a 220 gallon tank or larger with live rock for grazing and plenty of places for hiding. These fish are not the best reef dwellers and may nip and soft and stony corals (sessile invertebrates) and clam mantles, but they can be kept with small-polyped stony corals or somewhat noxious soft corals.
Their diet should include: high-quality angelfish preparations, meaty items such as mysis or frozen shrimp, spirulina, and marine algae.