Venustus AngelThe Purple Masked Angelfish also known as Venustus Angel or Blue backed Angelfish will make a beautiful addition for your aquarium. Its striking contrast of Blue and Yellow will add a diverse coloration that will please any aquarist. Purple Masked Angelfish requires a 70 gallon or larger aquarium with large amounts of live rock for hiding as they can be a shy fish. However, as the Purple Masked Angelfish matures and grows, they may become a bit more