96 Freshwater Fish Trivia Questions with Answers
96 public questions with answers, drawn from the well. How many can you answer?
Which freshwater fish is known for making a drum-like sound with its swim bladder?
Answer
Freshwater drum
Which freshwater fish is scientifically named Carassius auratus?
Answer
Goldfish
Which freshwater fish is the only native fish of Australia’s genus Neoceratodus?
Answer
Australian lungfish
Which freshwater fish is known as the electric eel despite being a knifefish?
Answer
Electric eel
Which freshwater fish is New York State’s official state fish?
Answer
Brook trout
Which freshwater fish is commonly called the Chinese algae eater in the aquarium trade?
Answer
Gyrinocheilus aymonieri
Which freshwater fish has been Wisconsin's official state fish since 1955?
Answer
Muskellunge
What is the scientific name of the rainbow trout, a freshwater salmonid native to the Pacific Rim?
Answer
Oncorhynchus mykiss
What was the weight of the famous 1932 world-record largemouth bass caught by George Perry?
Answer
22 pounds 4 ounces
Which freshwater fish is the largest species of African tigerfish?
Answer
Goliath tigerfish
Which freshwater catfish species is scientifically named Ictalurus punctatus?
Answer
Channel catfish
Which freshwater fish is called the clown loach in the aquarium trade?
Answer
Chromobotia macracanthus
Which freshwater fish is native to the Amazon and Orinoco basins and commonly called the freshwater angelfish?
Answer
Pterophyllum scalare
Which freshwater fish is known as the black ghost knifefish?
Answer
Apteronotus albifrons
Which freshwater fish is also known as the Nile tilapia?
Answer
Oreochromis niloticus
Which freshwater fish is the only living species in the genus Heterotis?
Answer
African arowana
Which freshwater fish is often called the red-bellied piranha?
Answer
Pygocentrus nattereri
Which freshwater fish is also called the Mississippi paddlefish because of its long, paddle-shaped snout?
Answer
American paddlefish
Which fish is the official state fish of Minnesota?
Answer
Walleye
Which freshwater fish is commonly called the oscar?
Answer
Astronotus ocellatus
Which freshwater fish is the smallest known vertebrate species by standard body length?
Answer
Paedocypris progenetica
Which freshwater fish is famous for having eyes divided into upper and lower halves?
Answer
Four-eyed fish
The goldfish is a domesticated form of which wild carp species?
Answer
Prussian carp
Koi are domesticated varieties of which common freshwater fish?
Answer
Common carp
Which freshwater fish can move over land for short distances using its pectoral fins?
Answer
Walking catfish
What organ do arapaima use as a lung to breathe air at the water's surface?
Answer
Modified swim bladder
Which freshwater fish is famous for reaching more than 3 metres in length in the Mekong River basin?
Answer
Mekong giant catfish
Which fish is widely recognized as the world's largest freshwater fish by weight?
Answer
Giant freshwater stingray
Which freshwater fish species produces the highest measured electric discharge, reaching about 860 volts?
Answer
Electrophorus voltai