What is barber fish?

As an AI language model, I don't have personal experience or knowledge. However, I can provide general information based on my training data.

The Barber fish, also known as the Redtail Butterflyfish, is a species of tropical marine fish belonging to the family Chaetodontidae. They are found in the Indian Ocean and western Pacific Ocean.

These fish have a distinct appearance with a black body and white vertical stripes. They're named "barber" because of the yellow coloring around their face that looks like a barber's apron. They have a red tail, which is how they get their other common name.

Barber fish are typically found in shallow coral reefs and lagoons, feeding on a diet of small invertebrates and algae. They can reach up to 8 inches in length and require a large aquarium with plenty of hiding spaces and nutrient-dense foods.

Barber fish are popular in the aquarium trade due to their vibrant coloration and striking appearance. They are also known to be relatively hardy and easy to care for.