• They not only are huge but are designed to be able to swim very fast; rates of 43 miles per hour.

• Their shape resembles an airplane which allows them to experience a low amount of drag. They can retract their fins to reduce the drag they sometimes experience.

• They are considered to be warm-blooded and in turn can venture into icy cold waters with ease.

• This species of fish is considered to be endangered for the simple fact that their meat is delicious to people all over the world.

• They can be found in the northern part of the Atlantic Ocean near Europe.

• The tuna feeds on a variety of other sea creatures like eel. They also are able to filter feed on tiny organisms. Eating all this different food helps the tuna to grow so large.

The biggest Bluefin tuna ever caught weighed an incredible 1,496 pounds. Even though they are a robust fish, they are endangered because of commercial fishing.

Some fun facts about fish:

• They breathe in water – which is why they cannot drown.

• Many fish eat other species of fish.

• 12 million households have aquarium fish – this means they are very popular with Americans.

• The smallest type of fish is only a quarter of an inch long. It is called a stout infant.

• Dentists keep fish tanks in their waiting rooms to make patients less anxious.

• Let me give you a funny trivia about fish: An ichthyologist is not someone who is interested in itching. It is someone who studies fish.

• When many fish swim together, they are referred to as a school.

• Even among fish, there are stalkers. The Pike for example, follows other fish around, taking cover using logs and plant cover.

• Your lipstick probably has fish scales in it!

• Amazing fish facts reveal that Goldfish can live more than 20 years – much longer than cats or dogs. The longest a goldfish has lived in recorded history is 43 years. A goldfish does not have a stomach. It can see light rays that humans cannot – including ultra-violet and infrared rays. Goldfish can live in water that is freezing. Lastly, goldfish have been pets for more than a millennium.

They need to have leaves, twigs, and plenty of vegetation to hide in (they are quite timid) and build nests. This species of fish has been bred into different hybrids such as Powder Blue (Blue) Dwarf Gourami, Neon Blue (Rainbow) Dwarf Gourami, and the Flame (Fire Red/ ‘Blood’ Red) Dwarf Gourami.

In nature, they live in waterways and paddy field in places like India, Assam and Bangladesh. Their natural habitat is thick with vegetation, so you will find them in the Ganges River for example.

This aquarium fish has several defining characteristics:

• Beautiful Colors – the males are a bright red – almost orange – background with blue green vertical stripes and a blue green belly
• Small – can be only two inches
• Non – aggressive, can live peacefully with other fish species in one tank
• Dwarf Gourami can absorb oxygen from the atmosphere using its labyrinth organ
• Omnivorous therefore eats all types of fish food available
• Hardy – Although this does not mean that, you do not have to change the water regularly to prevent toxins building up.

They enjoy having a good amount of light, but also require dense vegetation and floating plants so they can hide when they want to

• Black dragon fish are predators who feed on other types of fish. They trap their preys by emitting light from their bodies, which then attracts the prey. Once the prey moves close enough the dragon fish attacks it using its fangs.

• This species of fish may be long and thin, but they compensate with very large teeth, besides their ability to emit light.

• Black dragon fish are sexually dimorphic, meaning that females and males look different. The females are bigger – actually ten times bigger – and more aggressive than males. Female Dragon fish have small eyes and long fangs for getting hold of her prey. Further, females are black but males are brown.

• Unique are the Larval Black Dragon fish, which are almost transparent, with eyes at the end of two long stalks of flesh extending from their bodies.

• Light emitted by this marine fish is not very easy for humans to detect because it has such a long wavelength almost like infra red light.

They come in huge variety – over 25,000 identified species. There are more species of fish than of amphibians, reptiles, birds and mammals combined. Scientists still think they may yet identify 15,000 more species.

Even though 60% of fish species live in the sea, 99.99% of the earth’s water is seawater, this means that 40% of all fish species live in less than .01% of the earth’s water.

Fascinating Fish Facts: What you need to know?

• Not all fish are hopeless outside water! For example, the spotted climbing perch not only absorbs water from the air, but can also crawl on land using its fins.

• Not all types of fish have an air bladder, which enables them to stay afloat. The shark is one fish that has to keep swimming or stay on the ocean floor.

• Another amazing fish facts is that it turns out flying is not unique to birds. Some fish can fly.

• Fish can find their way even in unclear, murky water. They use a special sense organ known as the lateral line.

• The great whale shark – the biggest of all the fish – can be as long as fifty feet!

• The Philippine Goby grows to a maximum length of 1/3 of an inch – making it the smallest types of fish.

• Fish are capable of sensing pain and stress.

• Tropical fish from South America, Africa, Central America and Asia are very popular among Americans as pets.

• Killerwhale is also known as Orca, Blackfish or Seawolf. They look like a barrel.

• Second to humans, the Killerwhale is the most widely distributed mammal in the planet. They can adapt themselves to different seas and oceans.

• The Arctic, Antarctic and colder regions have the highest population of them. They are difficult to spot because of their black and white coloration, which is a perfect camouflage, enabling them to capture prey from land and sea.

• Killer Whales are huge, from 5.8 to 6.7 meters and weighing 3.6 – 5.4 kg. Killer whales move in groups, led by a mother figure. Generally, they pray on about 30 species of fish in order to survive. They use sound to navigate and to communicate underwater and are highly intelligent. The image of the Killer Whale is one that evokes fear in many people’s minds.

More Fish facts: What you need to know about Killer Whales:

1. They have a very good sense of hearing.
2. They can see very well, both from inside and outside the water.
3. Further, they cannot smell.
4. The killer whale has powerful jaws and strong teeth, which it can use to destroy other whales and other species

These tropical fish are so small that scientists were once fooled into thinking that they were the young of the Clown Rasbora. They later on realized that Dwarf Rasbora is a distinct species.

Scientists also once thought that the Dwarf Rasbora were the tenth smallest known vertebrate, something they now know is not true.

Here are some facts about Dwarf Rasbora:

1. They are very friendly and calm. This means they should not be put together with more aggressive species of fish.

2. These fish only do well when they are in consistently pure water.

3. They do not like overly harsh lighting.

4. While males are bright red in color, females are usually pink. Both tend to have a few black spots on the sides of their bodies.

These fish are omnivorous, that means they can eat a variety of foods.

Basic Facts about Silver Dollar

Characteristics: Silver dollars are generally characterized by their disk-like body, short fins and luminous silver color. They are also known to be peaceful and sociable freshwater fish, but they can be prevailing predator within their environment.

Habitat: Silver dollars are known to have originated from Tapajas River basin. They are found inhabiting in tropical and well-vegetated rivers.

Diet: Silver dollars are omnivores in nature. They primarily feed on weeds, aquatic plants, and small invertebrates such as spiders, worms and insects.

More Silver Dollar Facts for Kids

• Silver dollars are known to live and search for food in groups called as “shoals”.

• Some species of reptiles, larges fish and birds are the predominant predators of silver dollar fish.

• The size of silver dollar fish ranges from 5 centimeter to 14 centimeter.

• Silver dollar can live around 2 to 10 years. Its optimum ph level is around 5 to 7.

• Full grown female silver dollar can lay up to 2,000 eggs. They usually breed in soft, warm water.

• When silver dollar is kept as aquarium fish, it is advisable not to keep them together with smaller species of fish. It is believed that silver dollars live happily in aquarium along with large fish like catfish and Oscar fish.

Common Facts about Pikes

Characteristics: Pikes are characterized by their strong, powerful jaw, pointed head, elongated body and sharp teeth used for catching preys. They usually come in blue, grey, black and white colors.

Habitat: Pikes are freshwater-dwelling fish. They are found inhabiting in slow-running freshwater such as large streams, rivers and lakes across Canada, Europe, North America, and western part of Asia.

Diet: Pikes are generally carnivorous in nature, despite of the fact that young pikes feed on plants. They primarily feed on insects, smaller species of fish, snails, frogs and toads.

Lifespan: Since pikes are generally large-sized, they have few numbers of predators. Due to this, their average lifespan ranges from 12 to 15 years.

More Facts about Pikes for Kids

• The size of pike determines its sex. It is known that the larger the pike is, the more likely it is female. Male pikes are usually smaller than female pikes, weighing only 10 lbs or more.

• The size of pike ranges from 20 inches to 71 inches.

• A full grown female pike can lay around 200,000 eggs. They usually lay eggs during spring season for their offspring to have longer time to develop before winter season starts.

• Due to water pollution and over-fishing, pike population in Europe and North America is affected.

Characteristics

Barb fish are also called as freshwater shark because of its rows of teeth. This freshwater fish is pretty versatile as it can easily adapt to environmental changes including change in water ph level.

Habitat

Barbs are found inhabiting in slow flowing freshwater such as lagoons, lakes and rivers.

Diet

Even though barbs generally come in small size, they are known to be dominant predators and wild hunters in their natural habitat. They primarily feed on smaller fish, but when the food supply is scarce, they tend to prey twice larger than them.

More Barb Fish facts

• The size of barb fish ranges from 2.5 centimeter to 7 centimeter in length.

• The optimum ph level for barbs ranges from 6.0 to 7.5.

• Since barbs are very adaptable type of fish, it can be kept as aquarium fish in unheated tank. On the other hand, it shouldn’t be kept together with smaller sized tropical fish due to their aggressive temperament.

• The lifespan of barbs ranges from 3 to 7 years.

• Barbs can lay substantial number of eggs. Barb eggs usually hatch within a few days. The offspring of adult barbs are known as “fry”.