Corals receive a significant portion of their energy from the sun, but they still require protein and other minerals to flourish. Coral foods can either be spread across the tank or target fed to each coral individually. Depending on the kind of coral you are taking care of you may discover that target feeding is more effective than broadcast feeding, or that broadcast feeding may be more effective with corals like SPS and other small-mouthed species. Other additions, like as amino acids, may be put to your aquarium to aid enhance the availability of proteins and help break down solids into simple carbs and proteins. This will free up your corals' energy for growth and coloration rather than digestion, enabling them to concentrate more on these aspects of their lives.