Aqueon Tropical Color Enhancing Flakes Contains a unique blend of marigold, chili powder and natural astaxanthin which helps promote brilliant colors in marine fish Formulated with natural ingredients and colors with added vitamins, minerals and trace nutrients for a healthy diet Helps support a healthy immune system and bring out the true colors of your fish Specially formulated so that fish utilize more of what they eat, creating less waste Feed in small amounts that fish will consume in under 2 minutes