Introduction: Aquarium Corals: Selection, Husbandry, and Natural History 13 -- Chapter 1 Reef Worlds: Beauty, Biodiversity, and Scientific Wonders of the Coral Realm 19 -- Chapter 2 Anatomy Lessons: Polyps That Rule--and Build--the Reefs 35 -- Chapter 3 Zooxanthellae: The Symbiotic Algae of Corals 47 -- Chapter 4 Foods & Feeding: Nutrition on the Reef and in the Aquarium 57 -- Chapter 5 Secret Lives: Competition and Reproduction 69 -- Chapter 6 Taxonomy: Coral Classification--and Its Limitations 89 -- Chapter 7 Corals: Families, Genera, and Species of Special Interest to Aquarists 95 -- Class Hydrozoa: Fire Corals and Lace Corals 99 -- Subclass Octocorallia: Soft Corals, Stoloniferans, Gorgonians, Sea Pens 107 -- Order Zoanthidea: Colonial Anemones and Button Polyps 177 -- Order Corallimorpharia: Mushroom Corals 193 -- Order Scleractinia: Stony Corals 211 -- Chapter 8 Husbandry: Captive Reef-keeping Approaches and Essentials 323 -- Chapter 9 Water Chemistry: Parameters to Know and Maintain for Success with Corals 343 -- Chapter 10 Care & Handling: Selecting, Acclimating, and Siting Corals in the Reef Aquarium 359 -- Chapter 11 Coral Health: Recognizing, Preventing, and Treating Diseases, Worrisome Conditions, and Pests 367 -- Chapter 12 Conservation: Endangered Reefs and the Ethical Coral Keeper 399.