Encyclopedia of Aquarium and Pond FishThe most complete owner's manual for keeping all types of freshwater and saltwater fish in indoor tropical and coldwater aquariums and outdoor ponds. Choose the right fish for any water temperature tropical or coldwater and for all types of environments, including indoor aquariums or outdoor ponds. Know the difference between keeping saltwater fish and freshwater fish, including differences in aquarium setups, and feeding and caring for your pet fish.