Ornamental fish are species kept primarily for decorative purposes in aquariums and ponds. They come in various shapes, sizes, and colors, making them popular among hobbyists and collectors. Common types include goldfish, betta fish, and guppies, each known for their unique appearances and behaviors. These fish require specific care, including proper water conditions, diet, and tank mates. Maintaining a healthy environment is crucial for their well-being. Ornamental fish can also play a role in aquascaping, where aquarists design visually appealing underwater landscapes using plants and decorations alongside the fish.