Characin is a diverse group of freshwater fish belonging to the family Characidae. They are commonly found in rivers and lakes throughout South America and Central America. Characins are known for their vibrant colors and unique shapes, making them popular among aquarium enthusiasts. Some well-known species include the piranha and the neon tetra. These fish are typically small to medium-sized and often exhibit schooling behavior, swimming in groups for safety. Characins are omnivorous, feeding on a variety of foods, including insects, plants, and smaller fish. Their adaptability to different environments contributes to their widespread presence in the aquatic world.