Centropyge nox

Centropyge nox, commonly known as the Midnight angelfish, is medium-sized dwarf angelfish. It’s a totally pitch black fish which looks very similar to the dark blue C. deborae.

Like all other angelfish it's hermphroditic and the most dominant fish will turn into a male when there is no other male around. These fish are quite peaceful but be careful combining them with fish a lot smaller or larger and other (dwarf)angelfishes. Although dwarf angels are certainly more likely to be reef safe compared to their larger relatives and thus seen more often in reef tank, they're always a risk. C. nox mainly eats algae, but there is always the risk they might nip on corals, especially LPS and clams. So keep this in mind before introducing them into a reef tank. Keeping them well fed seems to reduce the risk so make sure to feed them a proper varied diet of algae and meaty foods to make them really happy!