"I caught a pale chub! It could use some sun!"
An information board in the aquarium will provide information about this fish.
"These fish are related to carp, with distinguishing features such as long ventral fins and protruding mouths. They have good jumping abilities, which allow them to jump up and grab bugs hanging around the water. They are known as very active fish with rather scrappy attitudes, making them tenacious survivors. During mating season, the male's stomach turns pink and its back turns blue. Females love this."
In real life
The Pale Chub, also called the Freshwater Minnow (or Pirami in Korea), is an East Asian fish. It is in no danger of becoming threatened or extinct, as it is plentiful in all of its habitats. It lives in fast flowing rivers, streams and lakes where it feeds off of insect larvae, algae and smaller fish. During mating season, the male Pirami changes its color to a more vibrant hue to impress females. They feed more actively in dull conditions, usually during the evening or when the weather is overcast. It is related to the Dark Chub, and is a member of the carp family Cyprinidae.