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.
Green gold catfish
The green gold catfish ("Corydoras melanotaenia") is a tropical freshwater fish belonging to the Corydoradinae subfamily of the family Callichthyidae. It originates in inland waters in South America, and is found in the Meta River basin in Colombia.