The Blue Queen Angel Fish has an overall aqua hue with a yellow shimmer and yellow edges on the fins and scales. The Blue Angelfish does not have the striking blue crown or other blue highlights of the Queen Angelfish. The juvenile Blue Angelfish differs markedly in coloring from the adult, with a yellowish-brown body color and pale blue striping.
The Blue Queen Angel Fish requires a large aquarium with plenty of hiding places. Tending towards aggression, especially directed at other angels, the Blue Queen Angel Fish is best kept as the only angelfish in the aquarium however it has been possible to mix with other angelfish . This species is prone to nip at stony, soft corals and clam mantles. It is hermaphroditic, and there are no distinguishing markings that differentiate males from females.
The diet of the Blue Queen Angel Fish should include marine algae, mysis or frozen shrimp, other meaty foods, and live rock for grazing.