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Parrotfish, Scaridae, are a group of saltwater fish found in tropical and subtropical oceans around the world. They are known for their bright colors and unique jaws, which are fused together and resemble a parrot's beak. Parrotfish are herbivores and play an important role in coral reef ecosystems by eating algae and helping to maintain the health of the coral. They also play an important role in the ecosystem by excreting sand, as they grind up coral to get to the algae. This process helps to create and maintain sandy beaches. Some species of parrotfish are considered to be important food sources for humans in some parts of the world, and are also popular in the aquarium trade.
Humphead Parrotfish Clickable
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Humphead Parrotfish Clickable
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Stoplight Parrotfish Clickable
By Adona9 at the English Wikipedia, CC BY-SA 3.0,
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The size of a parrotfish can vary depending on the specific species, but most species are relatively large, with an average length of about 12 inches. Some species, however, can grow much larger, reaching lengths of up to 4 feet.

One of the most distinctive characteristics of parrotfish is their ability to change their color and patterning. Like other wrasses, parrotfish are capable of rapidly changing their color and patterning in response to different stimuli, such as changes in light or the presence of potential mates. This ability to change color is thought to help parrotfish blend in with their surroundings and avoid predators. 

Parrotfish are also known for their sharp, beak-like jaws, which they use to break off pieces of coral and scrape off algae. These jaws are powerful and versatile, and they allow parrotfish to feed on a wide variety of plant and animal matter.

Parrotfish are found in a variety of marine habitats, including coral reefs and lagoons. They are found in tropical and subtropical waters throughout the world, and they are typically found in warm, shallow waters at depths ranging from a few feet to several hundred feet. 

They are active during the day, and they can often be seen swimming and foraging for food.

In terms of diet, Scaridae are omnivorous, feeding on a variety of plant and animal matter. They are known for their ability to graze on algae and coral, using their sharp, beak-like jaws to break off pieces of coral and scrape off algae. They are also known to feed on small invertebrates, such as crustaceans and mollusks. 

In the wild, they will eat whatever is available and easy to catch, but in captivity, they can be fed a diet of frozen or live meaty foods, such as brine shrimp and mysis shrimp, as well as a variety of commercial fish foods. It is important to provide a varied and nutritious diet to ensure that parrotfish stay healthy and thrive in captivity.

Parrotfish are generally active and playful fish, and they are known for their bright colors and distinctive, beak-like jaws. They are generally solitary fish, but some species are known to form small schools.

 They are generally peaceful and not aggressive towards other aquarium inhabitants, although they may occasionally nip at the fins of slow-moving or long-finned fish. 

In terms of behavior, parrotfish are generally active during the day and rest at night. They are known to be curious and playful, and they can often be seen swimming and exploring their surroundings.

There are many different species of parrotfish, and they are found in warm, shallow waters throughout the world’s tropical and subtropical regions. Some of the most well-known species of parrotfish include the Green Humphead Parrotfish (Bolbometopon muricatum), the blue-and-yellow queen parrotfish (Scarus vetula), and the stoplight parrotfish (Sparisoma viride)). 

Each species of parrotfish is unique, and they can vary in size, coloration, and behavior. Some species are relatively small, while others can grow to be quite large, reaching lengths of up to 4 feet