John H. Tullock has been keeping tropical fish since he was 8 years old. His Natural Reef Aquariums has been required reading for saltwater hobbyists since it was first published in 1997. His other aquarium books include The Reef Tank Owner's Manual, Successful Saltwater Aquariums, Your First Marine Aquarium, Clownfish and Sea Anemones, Corals, A Dictionary of Aquarium Terms, and Water Chemistry for the Marine Aquarium. In addition, hundreds of his articles about aquarium-keeping have appeared in magazines since 1980.
Tullock holds a master's degree in biology. He is the founder of the American Marinelife Dealers Association, an organization dedicated to environmentally sound aquarium keeping. He was a member of the steering committee that created the Marine Aquarium Council. He serves on the board of directors of Conservation Fisheries, a nonprofit organization that raises rare and endangered North American fishes for recovery programs, and is a member of the board of advisors of Reef Protection International.
Also an avid gardener and photographer, Tullock's most recent book is Growing Hardy Orchids (Timber Press).