Basic information about many species of fresh, salt, and brackish-water fish, grouped by family and listed by common name, as well as a message board devoted to the novice aquarist.

Taxonomy of the class known as bony fish, osteichthyes, ray-finned fish, or spiny-rayed fish, with profiles of representative species of each order and family.

Searchable global database containing information on 25,585 species (110,000 common names), 71,000 synonyms, 28,000 photos, and 21,000 references.

Natural history and care information of many fresh, brackish, and salt water puffer fishes (Tetraodontidae.)

Contains profiles on saltwater and freshwater species, general information, suitable tank mates and frequently asked questions. Includes articles on water chemistry, plants and culturing snails as live food and a brackish water FAQ.

Articles concerning freshwater and brackish water puffer care and identification.

Information and photos of freshwater and brackish pufferfish listed by scientific name.