PYGMY ANGELFISH - The African Flameback Angel, Centropyge acanthops:
Also called the Orangeback angel, this species comes from the West Indian Ocean and also reaches only 3” or so in length. Despite their small size, however, this is the most aggressive pygmy I’ve ever seen. I had one years ago that was every bit as obnoxious as a blue devil damselfish (very obnoxious). Still, I don’t think these are likely to cause any particular problems when kept with invertebrates in reef aquariums. Note that this species looks almost identical to the Brazilian Flameback angel, but it has a clear/translucent tail fin, which makes them easy to distinguish.
Photo ©John Clipperton Text ©James Fatherree - for Reefkeeping Magazine