👉 Ptilonyssus is a type of fish in the family Cyprinidae, which includes rainbow trout and several other species found in lakes and streams around the world. It is characterized by its distinctive long, pointed tail that can reach up to 10 feet (3 meters) in length. This tail is often used for swimming, although it does not play a significant role in the fish's diet or reproductive behavior. Ptilonyssus are known for their vibrant colors and
