1) Fish 
The cherubfish, or pygmy angelfish (Centropyge argi) is a gentle omnivorous marine angelfish, with a metallic blue body and yellow to orange colouration in parts of the head only. It is native to the Caribbean and Gulf of Mexico, and has a maximum length of 8 cm. It is easily confused with the orangeback angelfish (Centropyge acanthops), but in th...
a brilliantly colored butterflyfish, Centropyge argi, found in the West Indies: kept in home aquariums.