Keyhole Angelfish
Centropyge angels have forever been a favorite with hobbyists due to their smaller adult size, colorations and hardiness. The Keyhole Angel is often overlooked due to their lack of bright colors but they are an excellent addition and are known to snack on the nuisance filamentous algae and diatoms. Their small adult size of 7" means they can go into aquariums as small as 70 gallons. Provide a plenty of live rock for hiding and grazing. Like any other dwarf angel, they can be aggressive with other small angels and similarly shaped/colored fish. The Keyhole Angel is not the best choice for a reef aquarium because they tend to nip on corals and clam mantles. The Keyhole Angels are found in the Western Pacific around rubble areas of lagoons and reef slopes singly up to 55 meters deep. They are completely black with a white marking that resembles a key hole and blue lining the fins. Then there is also yellow on the pelvic and anal fins.