Goldfish
The goldfish ("Carassius auratus") is a freshwater fish in the family Cyprinidae of order Cypriniformes. It is one of the most commonly kept aquarium fish.
Common toadfish
The common toadfish ("Tetractenos hamiltoni"), also known as the common toado, toadfish or toado, (formerly classified as "Tetrodon hamiltoni" or "Torquigener hamiltoni") is a species of fish in the family Tetraodontidae of order Tetraodontiformes, found along Australia's eastern coast, from northern Queensland to Flinders Island, and around Lord Howe Island, as well as in New Zealand waters. It often buries itself in sand with only its eyes exposed.