Acanthastrea corals, also known as Acans for short, are a popular and colorful type of large polyp stony (LPS) coral. They are native to the Indo-Pacific region, with many species being found in Australia and Indonesia. These corals have distinctive and intricate patterns, making them a prized addition to many reef aquariums.

Acanthastrea corals are also known for their feeding habits, as they can be trained to extend their tentacles in search of food. They are hardy and adaptable, and can change color under different lighting conditions. As a result, many hobbyists prefer T5 lighting for best results. Overall, Acanthastrea corals are a great option for both novice and experienced reef enthusiasts, providing a stunning and fascinating addition to any aquatic ecosystem.