The midnight parrotfish is a tropical fish with a dominant dark blue to black coloration, featuring metallic blue reflections along its flanks and lighter blue mottling on its head. A yellowish spot is located above its mouth.

These bluish patterns are more or less visible depending on the individual, and its fins also display bluish edges.

As an adult, the midnight parrotfish reaches approximately 12 inches in length.

The midnight parrotfish is found in the tropical waters of the northwestern Atlantic ocean, throughout the Caribbean sea around the many islands of the West Indies, including Guadeloupe and Martinique, as well as in the Gulf of Mexico.

The midnight parrotfish inhabits coral reefs and rocky bottoms found around the many islands of the Caribbean sea and along the coasts of Florida.

The midnight parrotfish is a territorial fish that may defend its territory when approaching intruders.

Like most parrotfish, the midnight parrotfish has a mainly herbivorous diet. It primarily feeds on algae, as well as small marine organisms and organic debris that it grazes from the surface of rocky walls and coral reefs.

The midnight parrotfish is highly active during the day and patrols coral reefs in search of food. Using its beak-like jaws, it is able to crush and finely grind large quantities of coral, which it expels as clouds of whitish sediment.

The midnight parrotfish contributes to maintaining healthy coral reefs by regulating the growth and development of algae.

The midnight parrotfish is listed as many other marine species within The IUCN Red List of threatened species. The midnight parrotfish appears in the IUCN Red List since 2012 within the category Data Deficient !