Regal Blue Tang, scientifically known as Paracanthurus hepatus, is a stunning marine fish species found in the Indo-Pacific region. Popularly known as the Blue Tang, it is one of the most sought-after aquarium fish due to its bright blue coloration and unique body shape. In this article, we will discuss the characteristics, behavior, and habitat of Regal Blue Tang.
Characteristics

Regal Blue Tang has a flattened, oval-shaped body with a pointed snout and small mouth. It has a bright blue body with a yellow tail fin, black markings around the eyes, and a black bar on the body near the tail fin. The coloration of the Regal Blue Tang is a result of the presence of iridophores in the skin that reflects light in a way that creates a vibrant blue color. These fish can grow up to a maximum length of 30 centimeters, and they are sexually dimorphic, with males being slightly larger than females.
Behavior

Regal Blue Tangs are active swimmers and are known to be social, forming schools in the wild. They are herbivores, feeding on a diet consisting of algae and other plant matter. In the aquarium, it is essential to provide them with a varied diet, including vegetable-based flakes, pellets, and frozen foods such as brine shrimp or mysis shrimp. They are peaceful fish and can be kept with other non-aggressive species, but it is best to keep them in a tank that is at least 75 gallons in size.
Habitat

Regal Blue Tangs are found in the shallow waters of coral reefs in the Indo-Pacific region, from the eastern coast of Africa to the Hawaiian Islands. They prefer waters with temperatures between 75-82°F and a pH range of 8.1-8.4. These fish are popular in the aquarium trade, and it is essential to ensure that they are captive-bred and not taken from the wild, as this can cause damage to the natural ecosystem.
Final Thought

The Regal Blue Tangs are a beautiful and popular aquarium fish species. These blue creatures require a well-maintained aquarium with plenty of swimming space and a varied diet to thrive. However, it is essential to ensure that they are ethically sourced and not taken from the wild, to prevent damage to the natural ecosystem. With proper care and attention, these fish can be a stunning addition to any aquarium.