Tangs are colorful fish that belong to the family Acanthuridae, commonly found in warm ocean waters. They are known for their vibrant colors and unique shapes, making them popular in aquariums. Tangs have a distinctive feature: a sharp spine on each side of their tails, which they can use for defense against predators. One of the most famous tangs is the palette surgeonfish, often recognized from the movie Finding Nemo. These fish are social creatures, often seen swimming in groups among coral reefs. Their diet mainly consists of algae, which they graze on, helping to keep the reefs healthy.