The size of parrotfish varies depending on the species. Generally speaking, the body length of parrotfish ranges from 10 to 20 centimeters, but some varieties may reach around 30 centimeters. For example, the blood parrotfish, which is a hybrid of the Red Devil Cichlid and the Purple-bellied Cichlid, can usually grow to about 20 centimeters long. The lifespan of parrotfish is usually 4 to 5 years.
Parrotfish mainly live under the surface of tropical and subtropical oceans and inhabit the mixed areas of reefs and sand. They are carnivorous fish and feed on small benthic animals. They can even eat poisonous food. Parrotfish play an important role in the coral reef ecosystem because they excrete sand, which helps with the renewal of the coral reef system. In addition, parrotfish have ornamental value and are often used as ornamental fish.