Why is the coral reef so bright an colorful in Finding Nemo?

The coral reef in "Finding Nemo" is bright and colorful to capture the vibrant and diverse ecosystem found in real-life coral reefs. The filmmakers used vivid colors and imaginative designs to enhance the visual appeal and create an engaging underwater world. This artistic choice not only reflects the beauty of marine life but also underscores the themes of friendship and adventure that are central to the story. Additionally, the colorful reef serves to highlight the importance of ocean conservation.