Acan corals, scientifically known as Acanthastrea, are a type of large polyp stony (LPS) coral popular among reef aquarists for their vibrant colors, fleshy appearance, and unique patterns. These corals are easy to watch for, making them suitable for both newcomers and educated potterers. They thrive in moderate lighting and gentle to moderate water flow, adapting well to a range of reef tank environments. Acan corals are typically fed a mix of light and supplemental meaty foods like brine shrimp or mysis shrimp to maintain their color and health. Their hardiness, striking appearance, and compatibility with various tank setups make them a valuable addition to any saltwater aquarium.