The Jack Dempsey cichlid (Rocio octofasciata) is a popular freshwater fish known for its vibrant colors and aggressive nature. It has a flat, oval body with a base color of gray-brown to red-brown, often with iridescent blue and green spots. Adults can reach 7-8 inches (18-20 cm) in length. They are native to Central America and require a spacious aquarium with warm, neutral water.