Angelfish are beautiful freshwater and saltwater fish known for their vibrant colors and unique shapes. They are popular in home aquariums due to their graceful swimming and striking appearance. Common types include the freshwater angelfish, which has a triangular body and long fins, and the marine angelfish, which often displays bright patterns and colors. These fish are generally peaceful but can be territorial, especially during breeding. They thrive in well-maintained tanks with plenty of plants and hiding spots. Angelfish are also social creatures, often found swimming in pairs or small groups, making them a delightful addition to any aquarium.