The Pygmy Angelfish (Centropyge argi) is the smallest of the dwarf-dwarf or pygmy Angelfish, also called the Cherubfish, Cherub Angelfish, or Atlantic Pygmy Angelfish.
Found in the western Atlantic Ocean off Bermuda, and from North Carolina through the Caribbean Sea and Gulf of Mexico to the Caribbean coast of South America, as far east as French Guiana.
This dwarf angel is a visual gem and can be a good choice for smaller systems. It has a brilliant royal blue colored body with a yellow orange face and blue rings around its eyes. Although this fish is not as colorful as the African Flameback Angelfish, it is still quite striking and will make a beautiful addition to the right saltwater tank setup.
They only get to be about 3 inches (8 cm) as adults. Its size is very small, but it can be very aggressive especially with two males in the same tank. It shares the same aggression level as its cousins the African and Brazilian Flameback Angelfish. They should be kept singly and not with other Angelfish. Male and female Pygmy Angelfish can be housed in the same tank if introduced simultaneously. Provide plenty of established live rock for grazing and hiding.
Though they are safe to house with inverts such as Shrimp, Crabs, Snails, and Starfish, they are NOT reef safe as they will pick at large-polyped stony corals, clam mantles and feather dusters.
The diet of the Pygmy Angelfish should include Spirulina, marine algae, high-quality angelfish preparations, mysis or frozen shrimp, and other meaty items. Feed three times daily.