👉 A boxfish is a type of fish that belongs to the family Cyprinidae and are commonly found in freshwater environments. They have a distinctive, flat body shape with a long, slender spine and a single pair of eyes located on their head. Boxfishes are also known for their ability to live in saltwater habitats due to their adaptation to different water conditions. Boxfishes are typically small and can weigh as little as 1-3 pounds (0.5 kg), making