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 ling
The common ling ("Molva molva"), also known as the white ling or simply the ling, is a large member of the family Lotidae, a group of cod-like fishes. It resembles the related rocklings but it is much larger and has a single barbel. It is found in the northern Atlantic, mainly off Europe, and into the Mediterranean Basin and it is an important quarry species for fisheries, especially in the north eastern Atlantic, although there are some doubts as the sustainability of the fisheries. As an edible species it is eaten fresh, frozen or dried but also preserved in lye, while the roe is a delicacy in Spain.