It has a pearlescent body with several vertical orange to red stripes. The rear section of its body and caudal fin are black, with a sapphire-blue outline on the caudal fin. It reach a maximum length of 15 cm (6 in). It is a semi-aggressive omnivore.
The Blacktail angelfish requires an aquarium of at least 115 liters (30 gallons), preferably containing live rock for hiding and grazing. Blacktail angelfish cannot be housed with other dwarf angels.