|See Talk:Pomacanthus semicirculatus for individual experiences with this species, Pomacanthus semicirculatus. Feel free to add your own personal experiences.|
- Semicircle Angel
- Koran Angel
As a juvenile P.semicirculatus bears striking blue and white stripes over a dark (black) body, as it matures the markings fade to dark blue/black spots against and yellow/green body. Often confused at the juvenile stage with similar looking species P. imperator, P. chrysurus and P. maculosus.
- Other juvenile Pomacanthus
Up to 400mm 
Generally well accepted in reef aquariums, however care should be taken with other angels or tangs as they can display aggression to perceived competitors. Active in the aquarium, Angels can often be found darting from hide to hide.
Medium to large aquariums, >200L with a minimum width of 500mm.
Will accept a wide range of flow.
Low to intense lighting is acceptable.
Reaches sexual maturity within 4 1/2 years .
Often afflicted by Lymphocystis and susceptible to common fish diseases.
Avoid housing with similar species and potential competitors such as Tangs
Generally not compatible with shrimp.
How it reproduces, how suitable it is to breeding or captive propagation, techniques on how to etc.
Found throughout the Indian Ocean and West Pacific, from East Africa and the Red Sea west to Samoa, north to southern Japan, south to Western Australia, New South Wales and Lord Howe Island .
Found on inshore and outer reefs down to 30m .
Some additional notes on it that don't fit in the above sections.
- Pomacanthus semicirculatus - FishBase
- Pomacanthus semicirculatus by Andrew Trevor-Jones - information and photographs
- (http://dx.doi.org/10.1111/j.1365-2109.2009.02192.x): Leu, M.-Y., Liou, C.-H., Wang, W.-H., Yang, S.-D., Meng, P.-J., Natural spawning, early development and first feeding of the semicircle angelfish [Pomacanthus semicirculatus (Cuvier, 1831)] in captivity , Aquaculture Research , 40(9), (2009), pp.1019-1030.
- (http://www.fishbase.org): Froese, R., Pauly, D. Fish Base, World Wide Web electronic publication, 2008.