The Black Velvet Angelfish is shy and may be difficult to acclimatize. It needs a tank of not less than 50 gallons with plenty of hiding places. It is not a good reef dweller, since it nips at stony and soft corals (sessile invertebrates) and clam mantles.
It is hermaphroditic, very difficult to breed in an aquarium, and indistinguishable by coloration from male to female.
The Black Velvet Angelfish prefers a diet of Spirulina, marine algae, quality angelfish preparations, shrimp, and other meaty fare along with live rock for grazing filamentous algae and diatoms.
Source: Live Aquaria - Photo used as indicative only.