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Fish Knowledge

Can you guess these facts about fish?
Quiz by
Quizmaster
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Last updated: January 16, 2026
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First submittedJanuary 4, 2018
Times taken25,596
Average score70.0%
Rating4.38
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Hint
Answer
A group of fish is called a ....
School
Sharp-toothed river fish of South America that is highly feared
despite rarely attacking humans
Piranha
Trout are most closely related to this type of fish
Salmon
Bible character who was swallowed by a "great fish"
Jonah
The largest species of fish
Whale shark
Organ that fish use to breathe
Gills
Type of fish that is a traditional British breakfast food
Kippers
Poisonous fish served in high-end sushi restaurants
Pufferfish
Sign of the zodiac represented by two fish
Pisces
Fish that Hawaiians call "ahi"
Tuna
Toxic element found in unhealthy concentrations in some carnivorous fish
Mercury
Country where goldfish were domesticated
China
Fish known to the Japanese as "unagi"
Freshwater eel
Nile river fish, starting with T, that is commonly found in fish farms
Tilapia
Deep-sea fish that attracts prey with a luminescent lure
Anglerfish
Fish commonly served on pizza and Caesar salads
Anchovies
Type of fish that killed Steve Irwin
Stingray
The largest type of fish that lives in rivers
Beluga sturgeon
Country that clashed with the U,K, over fishing rights in the "Cod Wars"
Iceland
Term for a fin that grows on the top of a fish's body
Dorsal fin
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28 Comments
+5
Level 94
Jun 5, 2018
I knew the "Unagi" one because of Friends :')
+3
Level 89
Jun 5, 2018
Unagi is delicious. Too bad they're being dangerously overfished :(
+1
Level 56
Jun 6, 2018
Tell the one about feline AIDS.
+2
Level 55
Jun 5, 2018
Just an excercise in "who can spell pirana"
+4
Level 49
May 30, 2024
You mean pirahna?
+2
Level 87
Jun 5, 2018
I'm pretty sure the arapaima is the largest freshwater fish.
+4
Level 94
Jun 5, 2018
1. Beluga Sturgeon

2. White Sturgeon

3. Giant Freshwater Stingray

4. Mekong Giant Catfish

5. Alligator Gar

6. Arapaima

+1
Level 66
Jun 13, 2018
Aligator gars are freakin' terrifying. Just throwing that out there.
+1
Level 49
May 30, 2024
This is true.
+3
Level 70
Jun 5, 2018
Please accept Football Fish as an answer for Angler. First thing that comes up when you google 'football fish'
+1
Level 83
Feb 24, 2026
It's also the first thing that comes up if you google search "toothy light bulb fish".
+3
Level 83
Jun 5, 2018
Hardly surprising but still a sad commentary on our world to see that only 40% of quiz takers recognize Tilapia as a common farmed fish while over 80% know that a stingray killed Steve Irwin.
+14
Level 69
Jun 6, 2018
What is sad about more people knowing about the famous and outlandish death of a beloved conservationist than about a fish that is not a household name, can be hard to spell, and has a reputation as not being very good?
+5
Level 56
Jun 6, 2018
I agree. I think the death of a good man is much more memorable than a bland fish that got trendy for twenty-five seconds.
+1
Level 49
May 30, 2024
I had a slight laugh imagining a fish species trying to become popular.
+1
Level 70
Jun 6, 2018
I've always called an anglerfish, a monkfish and from the wiki it seems they can also be called frogfish and footballfish too. Why has it got so many names?
+3
Level 76
Jun 6, 2018
There are many types of anglerfish. While all of them have the three appendages with the foremost one being used to a lure in prey, not all of them have "bioluminescence". The "Football" fish does as does the answer that QM was looking for. However, Monkfish, do NOT have bioluminescent "esca". It should not be accepted as an answer.
+1
Level 82
Sep 23, 2018
Could you add schoal as an accepted answer to the group of fish question?
+1
Level ∞
Jan 16, 2026
Shoal is accepted
+3
Level 87
Sep 7, 2020
You could probably also include Lantern Fish for the bioluminescent fish question. Technically, that would be a correct answer for the question. Thanks!
+4
Level 78
Apr 1, 2021
No questions about Jeppy?
+3
Level 49
May 30, 2024
The best fish, no contest.
+1
Level 51
Jan 6, 2022
oh my god, are you serious, i thought all my life it was anchoives, and i even started pronouncing it like that as a joke, but its spelled anchovies, lmao
+1
Level 78
Feb 23, 2026
Why not accept "ray"? Stingrays are a type of ray.
+1
Level 69
Feb 23, 2026
Pure pedantry, but - the type of fish eaten for breakfast in the UK is herring.

When smoked they are called kippers when gutted or bloaters when not.

+1
Level 79
Feb 23, 2026
Just missed kippers
+1
Level 60
Feb 25, 2026
Wtf is a kippers
+1
Level 63
Feb 27, 2026
15/20. Apparently I took this quiz 8 years ago and got 7/15, which is weird because none of these questions really felt like something I didn't know or couldn't guess (at least out of the ones I got right this time lol). Maybe my quiztaking skills have just improved since then.

Also, is "U,K," a typo or is it referring to something other than the United Kingdom? I feel like the commas shouldn't be there.