Pomacanthus arcuatus also known as the Gray Angelfish
Approximate Purchase Size: Juvenile Small 1" to 1 1/2" Medium 1 1/2" to 2" Large 2" to 3" 
Changing Medium 3" to 3 1/2 Changing Large 3 1/2" 4" 
Adult Small: 4" to 4-1/2"; Medium: 4-1/2" to 5"; Large: 5" to 6"

Minimum Tank Size: 250 gallons 
Care Level: Moderate 
Temperament: Semi-aggressive 
Reef Compatible: No 
Max. Size: 1' 8" 
Origin: Caribbean 
Family: Pomacanthidae