The Saltwater Fish Trivia Quiz

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What is this salt water fish called?

Correct! Wrong!

The Foxface Rabbitfish (Siganus vulpinus) is the ultimate "vegetarian with a venomous secret"! While it spends most of its day nibbling on algae and seaweed—like an underwater gardener—it hides venomous spines in its dorsal fin for defense. When stressed, it can turn from sunny yellow to a moody dark brown in seconds! Bonus: Its "rabbit-like" mouth and constant chewing make it one of the reef’s most entertaining (and useful) algae-eaters.

What is this salt water fish called?

Correct! Wrong!

The Ocellaris Clownfish (Amphiprion ocellaris), famous as "Nemo," has a wild superpower—it can change sex! All clownfish are born male, and the dominant one in a group transforms into a female if the matriarch dies. They also communicate by making clicking noises and form lifelong bonds with their host anemone, whose stinging tentacles they’re immune to thanks to a special mucus coating.

What is this salt water fish called?

Correct! Wrong!

The Midas Blenny (Ecsenius midas) is a master of disguise—and a wannabe wrasse! Unlike most blennies that perch on rocks, this golden-yellow fish mimics the swimming style of fusiliers and wrasses, darting recklessly in open water to confuse predators. But its quirks don’t stop there: It can change color (often turning pale at night) and has a hilarious habit of "blinking" by rolling its eyes independently—like a grumpy old man!

What is this salt water fish called?

Correct! Wrong!

The Picasso Triggerfish (Rhinecanthus aculeatus) is a living work of art—its bold, geometric patterns inspired its name! But don’t let its beauty fool you: This fish has a powerful beak-like mouth that can crush shells, urchins, and even coral. It’s also notorious for its territorial aggression, earning the Hawaiian name "humuhumunukunukuāpuaʻa" (say that 3 times fast!). Fun quirk? It makes grunting sounds when threatened!

What is this salt water fish called?

Correct! Wrong!

The Six Line Wrasse (Pseudocheilinus hexataenia) is a tiny but mighty cleaner fish! Known for its vibrant stripes and endless energy, it darts around coral reefs picking off parasites and dead skin from larger fish—like a living toothbrush for the ocean. Bonus: They’re escape artists in home aquariums, so a tight lid is a must!

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What is this salt water fish called?

Correct! Wrong!

The Yellow Tail Damselfish (Chrysiptera parasema) is known for its striking blue body and vibrant yellow tail, but don't let its small size fool you—these fish are fiercely territorial! They will aggressively defend their chosen patch of coral or rock, even chasing away much larger intruders. Despite their bold nature, they are popular in aquariums due to their hardiness and dazzling colors.

What is this salt water fish called?

Correct! Wrong!

The Pink Skunk Clownfish (Amphiprion perideraion) is the delicate cousin of the famous "Nemo"! Unlike its orange relatives, this species sports a soft pink hue with a single white stripe and a skunk-like dorsal line. They form symbiotic bonds with specific anemones (like Heteractis magnifica), but here’s the twist: They’re less aggressive than other clownfish, often living peacefully in small groups—rare for their territorial family!

What is this salt water fish called?

Correct! Wrong!

The Banggai Cardinalfish (Pterapogon kauderni) is the ocean’s devoted dad—and a rare mouthbrooder! After the female lays eggs, the male carries them in his mouth for 3–4 weeks, not eating until they hatch. Even then, he lets the babies dart back into his mouth for safety!

What is this salt water fish called?

Correct! Wrong!

The Striped Blenny (Meiacanthus grammistes) is one of the few fish with a venomous bite! Unlike most venomous creatures that use their toxins for defense, this clever little fish uses its fangs to deliver a mild venom to deter predators. Despite this, they're generally peaceful in aquariums and love perching on rocks or coral, peering out with their curious, expressive eyes.

What is this salt water fish called?

Correct! Wrong!

The Hawkfish (family Cirrhitidae) are the perching predators of the reef! Unlike most fish that swim freely, these clever hunters squat on coral branches or rocks like a bird of prey—hence their name. Their rough, scaly fins act like tiny hands, gripping tight even in strong currents. And here’s the kicker: They’re ambush artists, lunging at unsuspecting shrimp or small fish with lightning speed. Some even hitchhike on sea urchins for camouflage!

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What is this salt water fish called?

Correct! Wrong!

The Firefish Goby (Nemateleotris magnifica) is the "Houdini of the Reef"! This dazzling, neon-colored fish is famous for its dramatic escape tactic—when threatened, it darts headfirst into a burrow or crevice at lightning speed, vanishing in a blink. But here’s the twist: It uses its long, flowing dorsal fin like a "signal flag" to communicate with mates, waving it to warn of danger or flirt!

What is this salt water fish called?

Correct! Wrong!

The Copperband Butterflyfish (Chelmon rostratus) is the "Swiss Army Knife" of the reef! With its long, needle-like snout, it expertly plucks tiny prey from crevices—like a surgeon targeting stubborn parasites, including dreaded Aiptasia anemones (a pest in saltwater tanks). But here’s the catch: This picky eater often refuses to eat in captivity unless offered live food, making it a challenge for even expert aquarists.

The Saltwater Fish Trivia Quiz
Clownfish Apprentice – Time to hit the books (or reefs)!

Coral Casual – You’re halfway to fish fame!

Fish Whisperer! – Great job, but the ocean still has secrets.

Reef Master! – You’re a saltwater savant!

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