(Centropyge nox)
Centropyge nox, known commonly as the midnight angelfish, black nox angelfish, or black pygmy angelfish, is a species of marine fish in the family Pomacanthidae. The midnight angelfish is widespread throughout the tropical waters of the Western Pacific: Ryukyu Islands to Indonesia, the Solomon Islands, the Great Barrier Reef and New Caledonia. The midnight angelfish is a dwarf species of marine angelfish and can reach a maximum size of 12 cm length.