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.
Hardhead catfish
The hardhead catfish ("Ariopsis felis") is a species of sea catfish from the northwest Atlantic and Gulf of Mexico, and similar to the gafftopsail catfish ("Bagre marinus"). It is one of four species in the genus "Ariopsis". The common name, hardhead catfish, is derived from the presence of a hard, bony plate extending rearward toward the dorsal fin from a line between the catfish's eyes. It is an elongated marine catfish that reaches up to in length and in weight. Their typical weight is less than , but they commonly reach up to . They are often a dirty gray color on top, with white undersides.