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Black wolf fish (Hoplias curupira) Can Bite Humans

Black wolf fish

The black wolf fish (Hoplias Curupira) is a predatory fish from the Erythrinidae family. It is a wide-bodied fish with black and brown body colors and is known to have canine teeth. These teeth are pretty comparable to those of wild piranhas. The Hoplias species are 20-130 cm long and are widespread in South America; through the Orinoco River basin and the Amazon River basin. It is a freshwater fish kept in aquariums and fish tanks.

This large Curupira species preys on crustaceans, small fish, sea urchins, and insects. Their diet also involves seeds and fruits, and these fish are known to have an insatiable appetite and are capable of biting humans. They have the ability to breathe oxygen and balance the lack of oxygen in the water. This special adaptation helps them to thrive in swamp and drainage water areas. Keep reading to learn more about this threatening fish.

What kind of animal is the black wolf fish?

The black wolffish is a predatory fish from the Erythrinidae family.

The black wolf fish belongs to which class of animal?

The black wolffish belongs to the class Actinopterygii and the genus Hoplias. All species of this genus are considered aggressive, and it is complicated to determine which wolf is the most aggressive.

How many black wolffish are there in the world?

Although the exact number of black wolffish is unknown, there are a total of 16 Hoplia subspecies in the world.

Where does the black wolffish live?

The black wolffish (Hoplias Curupira) lives in South America and is seen in large numbers throughout Brazil, the Amazon River basin, and the Orinoco River.

What is the habitat of the black wolffish?

The wild wolffish (Hoplias Curupira) is a freshwater animal and is known to live in a variety of freshwater habitats, including rivers and aquariums. They are also able to thrive in swamp areas and dirty water drainage.

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Who does the black wolffish live with?

Black wolffish are colonial and are mostly seen in pairs, much like guppies.

How long do black wolffish live?

Their exact length of life is unknown. However, other fish belonging to the same Actinopterygii class are known to have a maximum lifespan of 20 years. The Atlantic wolffish is known to have a lifespan of 12 years.

How do they reproduce?

The female wolffish breeds by laying around 2,000-10,000 yellowish eggs. The male is responsible for digging a hole where the female lays her eggs. The male Hoplias species is responsible for protecting the eggs as well as the larvae. Females are generally longer than males and have rounded bellies. This species of Hoplias fish is known to live in pairs and start breeding as soon as the water temperature drops. Children’s diets include small shrimp, for example, Artemia nauplii, like rainbow food.

What is their conservation status?

The black wolffish (Hoplias Curupira) is not listed on the International Union for Conservation of Nature or the IUCN Red List. However, their population is slowly declining due to habitat loss, water pollution, and commercial fishing.

What does a black wolffish look like?

The wolffish (Hoplias Curupira) is easy to spot because of its distinct, continuous dorsal fin. They have no pelvic fins and have a broad bodies with a large heads. Their body color is black and brown. They have 34-39 scales along their lateral body line. This tropical Hoplia species has small black pores on each side of its jaws. Piranha fish vs wolf fish have quite an interesting resemblance because these species are known to be as aggressive as piranhas. The Hoplias species have sharp, fang-like teeth with which they can tear the flesh of their prey into pieces.

How cute are they?

The Hoplias species are anything but cute due to their menacing arrangement of teeth and massive bulky bodies.

How do they communicate?

Although the exact mode of communication of wolffish is unknown, they are able to change their body color depending on their mood. These colors can range from light yellow, orange, brown to dark black. They are excellent predators and wait to catch their prey in dense vegetation.

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How big is the black wolffish?

The Hoplias species is 20-130 cm long and much larger than the candiru catfish, which measures around 5-17 cm.

How fast can black wolffish swim?

Although the exact speed of the black wolffish (Hoplias Curupira) has not been recorded, they are not very fast swimmers and have been known to wait patiently to catch their prey.

How much does a black wolffish weigh?

The wolffish weighs about 30 kg.

What do black wolfish eat?

The black wolffish feeds on crustaceans, small fish, insects, insect larvae and worms. They also eat seeds and fruits.

Are they dangerous?

This species is known to be very aggressive and has sharp and deadly teeth and strong jaws. They prey on other small fish and can even bite humans. They are often considered deadlier than piranhas.

Will they make good pets?

Despite having very sharp teeth and an intimidating black body, this fish species can enter the aquarium and can be kept as a pet. In fact, they exhibit interesting behavior with other fish species and are quite easy to keep.

Do you know…

Despite its unsightly appearance, this fish species are eaten by humans and is widely sold in fish markets in Central and South America. They are known to be very fleshy and have lots of bones.

Their favorite food is sea urchins, and as such, wolffish species are considered a big contributor to the ecosystem as they prey on sea urchins in large numbers. Sea urchins are capable of destroying seagrass beds and therefore eliminating a large number of aquatic organisms that depend on the seaweed for their food and for shelter.

They are also known as a very loyal partner and do not fertilize another female’s eggs. Males stick to their female partners throughout their lives.

Why is it called a wolf fish?

It is called that because of its fang-like teeth and strong, wolf-like jaws.

What size tank do wolffish need?

Because of their large size, these fish are kept in large tanks with dimensions of 150 x 60 x 60 cm) or even larger.

Those are some interesting facts about the black wolffish (Hoplias Curupira), I hope this is useful.

Nooru Ariyoushi

Nooru Ariyoushi

Nooruariyoushi has been a fish hobbyist for 20 years and is now a blog writer sharing information about fish and how to care for them.

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