15 Fin-tastic Facts About The Blue Spotted Puffer For Kids

One of the interesting blue spotted puffer facts is that it can blow up like a balloon when it feels threatened.

Blue spotted puffers belong to the Actinopterygii or 'ray-finned' class of medium-sized marine fish. They are just one of the close to 100 species of pufferfish that exist. It is just a small marine fish that lives in the tropical waters of the Indo-Pacific region and are members of the Canthigaster genus. It is found from eastern Africa to the Ryukyu Islands, the Line Islands, as well New Caledonia, and the Hawaiian Islands. Being a puffer, this fish defends itself by puffing up and administering the poison tetrodotoxin in its underskin armor. Since it belongs to the Canthigaster genus, it is also called the blue dot sharp-nosed puffer and the blue dot toby. The species is sometimes confused with the Papuan toby puffer (Canthigaster papua), but the blue spotted puffer does not have any orange color around its mouth like the Papuan toby puffer.

Keep reading for more fun facts. Also, check out these Bonito fish facts and rainbow trout facts for kids.

Blue Spotted Puffer

Fact File

What do they prey on?

Squid, krill, hard-shelled shrimp, coral, meaty foods, algae, sponges

What do they eat?


Average litter size?

Up to 200 eggs in a clutch

How much do they weigh?

10-12 lb (4.5-5.5 kg)

How long are they?

Up to 4.5 in (11.5 cm)

How tall are they?

About 1.6 in (4 cm)

What do they look like?

Reddish-orange, blue, turquoise

Skin Type

No scales, underskin armor

What are their main threats?

Humans, Tiger Sharks

What is their conservation status?

Least Concern

Where you'll find them

The Indo-Pacific water







Scientific Name

Canthigaster solandri





Blue Spotted Puffer Interesting Facts

What type of animal is a blue spotted puffer?

The blue spotted puffer (Canthigaster solandri) or blue dot sharp-nosed puffer is a fish.

What class of animal does a blue spotted puffer belong to?

The blue spotted puffer (Canthigaster solandri) or blue dot sharp-nosed puffer belongs to the Actinopterygii (fish) class of animals.

How many blue spotted puffers are there in the world?

The exact number of blue spotted puffers left in the world is unclear.

Where does a blue spotted puffer live?

Also known as blue dot tobies, the blue spotted puffers are members of the Canthigaster genus that live in the tropical marine Indo-Pacific waters and are found near the island in Oceania such as French Polynesia, Mariana Islands, Micronesia, New Caledonia, and Marshall Islands.

What is a blue spotted puffer's habitat?

The blue spotted puffer (Canthigaster solandri) is a medium-sized fish that lives in shallow marine waters, near reefs and rocky coasts. It lives at depths of 33-118 ft (10-36 m) from the surface. It also has an affinity for seagrass beds. Blue spotted puffers like barren areas that are open as well as lagoons.

Who do blue spotted puffers live with?

Also called blue dot tobies, the blue spotted puffers are found in pairs or sometimes, in small groups.

How long does a blue spotted puffer live?

Blue spotted puffers may live for close to 10 years, or even more.

How do they reproduce?

Blue spotted puffers (also called the blue dot tobies), spawn by mating and laying eggs. They don't display parental nurturing after the eggs are laid, but the female does push the eggs into a clump in a suitable nest.

What is their conservation status?

The conservation status of blue spotted puffers, according to the International Union for Conservation of Nature is Least Concern.

Blue Spotted Puffer Fun Facts

What do blue spotted puffers look like?

A blue spotted puffer (Canthigaster solandri), also called the blue dot puffer is a medium-sized fish that is usually up to 4.5 in (11.5 cm) long and weighs 10-12 lb (4.5-5.5 kg). It has no pelvic fins but does have pectoral fins, which it uses to propagate itself in the water. It is a small ray-finned fish that has no scales but does have armor beneath its skin. It has two incisors on either side of its jaw and has a long and sharp muzzle, which is why it is also called a sharp-nosed puffer. The overall color of the blue spotted puffer is reddish-orange. Most prominently, it has blue polka dots all over its body, which is where it gets its name. These dots become blue lines near the fins and the head. This fish keeps its dorsal fin closed unless under threat, to move quicker. A blue spotted puffer may blow up like a balloon when it is confronted with a predator, to surprise them. In the blue spotted puffer, poisonous substance tetrodotoxin is found underneath their skin.

The blue spotted puffer gets its name from the many blue polka dots it has all over its body.

How cute are they?

Blue spotted puffers, who are members of the Canthigaster genus, are truly beautiful creatures. They look like pieces of art. Their orange-colored bodies are adorned with bright blue and turquoise polka dots and their sharp noses and muzzles make them look gorgeous. They also have entertaining defensive habits. A blue spotted puffer fills its body up like balloons when confronted with danger. A blue spotted puffer may be deadly with their tetrodotoxin laced skins, but they sure are easy to look at.

How do they communicate?

A blue spotted puffer communicates via its teeth. They utilize bladder vibrations as well. One of their most famous characteristics is that they protect themselves by blowing up and using the poison in their skins. During mating, the female attracts a male by displaying her belly.

How big is a blue spotted puffer?

The blue spotted puffer (Canthigaster solandri) is up to 4.5 in (11.5 cm) long on average, making it four or five times smaller than fishes like the longhorn cowfish and milkfish.

How fast can a blue spotted puffer swim?

The exact speed that a blue dot toby, blue dot puffer, or blue spotted puffer (Canthigaster solandri) can swim at is unclear, however, they are clumsy swimmers.

How much does a blue spotted puffer weigh?

A blue dot toby,blue dot puffer, or blue spotted puffer (Canthigaster solandri) weighs around 10-12 lb (4.5-5.5 kg).

What are the male and female names of the species?

The male and female of the blue dot toby, blue dot puffer, or blue spotted puffer fish species do not have specific names.

What would you call a baby blue spotted puffer?

A baby blue dot toby (or blue dot puffer or blue spotted puffer) may be called a fry, a juvenile, or a fingerling before it becomes an adult.

What do they eat?

A blue dot toby, blue dot puffer, or blue spotted toby puffer has an omnivorous diet and eats foods like squid, krill, coral, other meaty foods, algae, sponges, clams, and hard-shelled shrimp.

Are they dangerous?

Yes, the blue spotted puffers have very dangerous characteristics. They have underskin armors and no scales. They puff up when threatened and their scaleless secrets deadly tetrodotoxin. If handled without gloves, hands should be washed immediately and thoroughly.

Would they make a good pet?

Also called tobies, the blue spotted puffers are beautiful creatures and already are used as a popular pet for personal and commercial fish tanks. A minimum tank size of 50 gal (190 l) should be used to keep them as pets. The tank should be a fish-only aquarium. Although the minimum tank size of 50 gal (190 l) is used most often, a larger fish-only aquarium may also be used. The biggest benefit of a fish-only aquarium is you have only one type of animal to worry about. The aquarium should be supplied with many corals and rocks to keep its beak-like, ever-growing teeth in check.

Proper blue spotted puffer care includes giving them their omnivore food thrice a day. Blue spotted puffer food should include spirulina tablets and meaty foods like brine shrimp. Also considered proper blue spotted puffer fish care is providing rocks, corals, clams, and hard-shelled shrimp so that their beak-like, ever-growing teeth can be worn down. The blue spotted Fiji puffer is a popular pet choice. In aquariums, blue spotted puffer does well and thrives.

Did you know...

The blue spotted puffer (Canthigaster solandri) and the Papuan toby puffer (Canthigaster papua) are very similar-looking sharp-nosed puffers or tobies who both inhabit Indian and Pacific waters. Canthigaster solandri and the Papuan toby puffer (Canthigaster papua) are both small omnivore fishes, around 10 cm long.

Canthigaster solandri and the Papuan toby puffer are joined by other sharp-nosed puffer members such as the Caribbean  sharp-nosed puffers or tobies, and the Valentin sharp-nosed puffers or tobies. One of the main characteristics of sharp-nosed puffer members is that they are small and have pointed muzzles. The sharp-nosed puffer members are collectively called 'Canthigasters'.

Corals, clams, and hard-shelled shrimp are most commonly helpful in trimming down the ever-growing teeth and beak-like incisors of the omnivore blue spotted puffers in the wild.

Being a popular fish tank choice, a blue spotted puffer for sale is easily found on the internet.

When a blue spotted puffer sleeps, its coloration changes to duller shades.

Fiji is a prominent supplier of the blue spotted puffer, which is sometimes synonymously known as the blue spotted Fiji puffer.

Why is it also called the blue dot sharp-nosed puffer?

The blue spotted puffer (Canthigaster solandri) is also called the blue dot sharp-nosed puffer because its body is riddled with blue polka dots and being a puffer-fish, it has a sharp nose and muzzle.

What survival mechanism does the blue spotted puffer have?

In the presence of a potential predator, the blue spotted puffers quickly fill up and 'puff up' their bodies to astonish them. More importantly their scaleless skin secrets the deadly tetrodotoxin poison which kills the attackers. As a result, blue spotted puffers do not have a variety of predators, except tiger sharks and other sharks.

Here at Kidadl, we have carefully created lots of interesting family-friendly animal facts for everyone to discover! Learn more about some other fish from our rainbow cichlid surprising facts or Arctic char fun facts pages.

You can occupy yourself at home by coloring in our free printable fish coloring pages.



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