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Top 10 Most Beautiful Fish in the World

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Amara has spent some years of her life as a science teacher. She is a graduate in life sciences and has a master's in social sciences.

Top 10 Most Beautiful Fish in the World

Top 10 Most Beautiful Fish in the World

Fish are one of the most beautiful creatures of mother nature. There are approximately 34,000 different species of fish found in the fresh and salt waters of the world. In this article, we'll explore 10 of the most beautiful fish in the world, discussing their physical attributes and other facts.

Names of the 10 Most Beautiful Fish

Following is a list of the 10 most beautiful fish in the world

  1. Red crowntail Betta fish
  2. Discus fish
  3. Banngai cardinal fish
  4. Mandrinfish
  5. Freshwater angel fish
  6. Ram cichlid
  7. Arowana
  8. Sea goldie
  9. Dwarf gourami
  10. Clown triggerfish
Red Crowntail Betta fish

Red Crowntail Betta fish

1. Red Crowntail Betta fish

  • Conservation status: Vulnerable
  • Binomial name: Betta splendens
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Actinopterygii
  • Order: Anabantiformes
  • Genus: Betta
  • Species: B. splendens

The Crowntail betta fish, earned its famous name due to its vibrant tail fin, despite only being 20 years as a species. It is a small fighting freshwater fish, that has its origin in South Asia.

Its caudal fin has big extensions, that can be sometimes 8 inches in diameter, which is three times the size of its body.

The crowntail betta is approximately 2.5 inches in length but can grow to a maximum size of 3 inches. It has a lifespan of 2 to 3 years, which is typical for any small tropical freshwater fish.

They are mostly found in vibrant and attractive colors, of which the most prominent are the dark shades of blue and red.

Discus fish

Discus fish

2. Discus fish

  • Conservation status: (N/A)
  • Binomial name: Symphysodon aequifasciatus
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Actinopterygii
  • Order: Cichliformes
  • Genus: Symphysodon
  • Species: Symphysodon discus

Symphysodon, a fish native to the Amazon river basin in South America, is also known as discus fish. They belong to Family Cichlidae.

Due to their unique shape, behavior, vibrant colors and patterns, discus are popular as freshwater aquarium fish, and also referred to as "King of the Aquarium." Their aquaculture is a major industry in several countries of Asia.

Discus are generally calm and peaceful, but as cichlids, they can be aggressive while spawning and in attempts to pair off.

Their food mainly consists of plant material and detritus, but can also be seen foraging at the bottom looking for small worms and crustaceans.

Banggai Cardinalfish

Banggai Cardinalfish

3. Banggai Cardinalfish

  • Conservation status: Endangered
  • Binomial name: Pterapogon kauderni
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Actinopterygii
  • Order: Kurtiformes
  • Genus: Pterapogon
  • Species: P. kauderni

The Banggai cardinalfish is a small marine bony fish, which is endemic to Banggai Archipelago, in Indonesia.

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It has been introduced outside its natural range through the ornamental live reef trade and is very popular in aquarium culture.

This attractive fish is mainly silver in color with tiny polka dot patterns on its fins. It also has three black bands in a vertical direction.

The Banggai cardinal primarily feeds on copepods but also eats planktonic organisms. It has an average life span of 2.5 to 3 years, and the maximum life span is up to 5 years.

Mandarinfish

Mandarinfish

4. Mandarinfish

  • Conservation status: Least concern
  • Binomial name: Synchiropus splendidus
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Actinopterygii
  • Order: Callionymiformes
  • Genus: Synchiropus
  • Species: S. splendidus

The Mandarinfish is one of the most beautiful and stunning fish in the ocean. It is native to the Pacific ocean, ranging from the Ryukyu Islands south to Australia.

It is a small and shy tropical fish, which is popular as a photographic subject due to its striking beauty and interesting habits

Mandarinfish is not a strong contender in finding food, as it is a fussy, careful and slow eater. Its food mainly consists of protozoans, small worms, small crustaceans such as mysids, amphipodsand isopods.

One of its prominent features is its big outward-set eyes, which is an ideal adaptation for food hunting and feeding in the dim light underwater environment of the ocean.

Freshwater Angelfish

Freshwater Angelfish

5. Freshwater Angelfish

  • Conservation status: (N/A)
  • Binomial name: Pterophyllum scalare
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Actinopterygii
  • Order: Cichliformes
  • Genus: Pterophyllum
  • Species: P. scalare

Freshwater angelfish is probably the most recognized fish in the aquarium hobby, which is native to tropical South America, including much of the Amazon River system.

They are mostly found in quiet, slow-moving waters, in their natural habitat. In the wild, they are seen in dimly lit areas, under vegetation or trees fallen into the river.

The fish belong to Cichlid family and come in a variety of beautiful colors and patterns, ranging from colored stripes to solid silver, or black and silver marble. They can live up to ten years or even longer.

They are generally peaceful, but being cichlids, they can be aggressive while pairing up and spawning. They are opportunistic like most fish and can eat anything that fits into their mouth, including smaller fish around them.

Ram Cichlid

Ram Cichlid

6. Ram Cichlid

  • Conservation status: (N/A)
  • Binomial name: Mikrogeophagus ramirezi
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Actinopterygii
  • Order: Cichliformes
  • Genus: Mikrogeophagus
  • Species: M. ramirezi

The Ram cichlid is a small, colorful, and very popular aquarium fish, which is endemic to the Orinoco River basin, in the Savannah of Columbia and Venezuela.

The fish has an oval-shaped body, with pointed fins and a tail. Mature males can develop more pointed dorsal fins than females.

In aquariums, males can grow about 2 inches (5 cm) larger in length than females, whereas in nature they can attain a length of about 2 3/4 inches (7 cm).

The Ram cichlid is an easy-maintenance fish and is known as the best "beginner" cichlids, due to its beautiful colors, calm and peaceful nature. They are easy eaters, and can easily eat anything fed to them.

Arowana

Arowana

7. Arowana

  • Conservation status: Asian Arowana is endangered
  • Binomial name: Osteoglossum bicirrhosum
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Actinopterygii
  • Order: Osteoglossiformes
  • Genus: 3 different genera
  • Species: Many different species

Arowanas are freshwater bony fish, found in the rivers, lakes and ponds of Asia, South America, and Australia. They are also known as bony tongues.

These fish have a narrow and thin body shape, which makes them resemble eels. There are about 10 different types of Arowana, 4 from Asia, 3 from South America, 2 from Australia, and 1 from Africa, that are commonly kept as pets.

Asian Arowana is listed as an endangered species and is banned in the US. It is considered a status symbol, among wealthy Asian men. In 2009, an albino Arowana was sold for a record price of $300,000.

Mostly pet Arowanas are farmed and raised under high-security fences. They are solitary fish, which only allow company when young, adults may show aggression and dominance towards others.

Sea Goldie

Sea Goldie

8. Sea Goldie

  • Conservation status: Least concern
  • Binomial name: Pseudanthias squamipinnis
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Actinopterygii
  • Order: Perciformes
  • Genus: Pseudanthias
  • Species: P. squamipinnis

Found in the western Indian Ocean, including the Red sea, and in the Pacific Ocean as far east as Japan and southeast Australia, the sea goldie is a small tropical fish that inhabits the translucent waters of lagoons and coral reefs, up to 20 metres in depth.

These fish are protogynous hermaphrodites, like the other members of their family. They are born as females but turn into males at some point in their life.

They are organized in a harem system, in which one male protects and controls several females, and that makes them aggressive and territorial.

When a school loses its male, females can change their sex and turn into a male. Their coloration changes from orange to pink, when females change their sex and turn into a male. Females are typically two times smaller in size than males.

Dwarf Gourami

Dwarf Gourami

9. Dwarf Gourami

  • Conservation status: Least concern
  • Binomial name: Trichogaster lalius
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Actinopterygii
  • Order: Anabantiformes
  • Genus: Trichogaster
  • Species: T. lalius

Known as one of the most beautiful aquarium fish, dwarf gourami is native to slow-flowing freshwater rivers, ponds, lakes and rice fields of Southern Asia, but can also be found in the USA, Singapore, and Colombia now.

Formerly known as Colisa lalia, dwarf gouramis continue to rise in popularity. These strikingly colorful fish are low maintenance and prefer to live and stick together when possible. In this way, they feel more secure and comfortable.

They have an average life span of 5 years, but under good conditions, they can live even longer. They can grow to a length of up to 4.5 inches, but on average they only grow up to 3.5 inches in size.

Clown Triggerfish

Clown Triggerfish

10. Clown Triggerfish

  • Conservation status: (N/A)
  • Binomial name: Balistoides conspicillum
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Actinopterygii
  • Order: Tetraodontiformes
  • Genus: Balistoides
  • Species: B. conspicillum

The Clown triggerfish is a brightly colored fish, and can also be referred to as the foraging predator. They are widely spread throughout the tropical and subtropical waters of the Indian Ocean, and the western Pacific Ocean.

They can be found around the reefs in the wild waters, where shellfish and other invertebrates are found. These are very aggressive and territorial fish.

While being very attractive and colorful, they can be the most aggressive inhabitant of an aquarium. So while selecting their tank mates, choose other large and aggressive fish. As once they reach around the size of 5 to 6 inches, they are pretty much not afraid of anything.

Sources and Further Reading

This content is accurate and true to the best of the author’s knowledge and is not meant to substitute for formal and individualized advice from a qualified professional.

© 2021 Amara

Comments

Amara (author) from Pakistan on October 17, 2021:

Nian, thank you for your love and support sister. Much love dear. Salam.

Amara (author) from Pakistan on October 17, 2021:

Thank you Mr Bill, Much glad to know that you loved the article.

Thanks for your lovely comment Sir, means alot.

Amara (author) from Pakistan on October 17, 2021:

Chitra di, thank you so very much. I am really happy to know that you loved the article and found it interesting.

Enjoy your day. Love & Peace.

Amara (author) from Pakistan on October 17, 2021:

Peggy, thanks for stopping by and leaving comment, my dear friend. Its always a pleasure to hear from you.

Have a great day.

Nian from Pakistan on October 17, 2021:

All of these fishes are very beautiful. You wrote a very interesting article.

Thanks for sharing a very beautiful hub.

Many Love and Blessings!

Amara (author) from Pakistan on October 17, 2021:

Miebakagh

Thanks for your warm words of appreciation. I highly appreciate them. Thanks for reading it. Blessings.

Amara (author) from Pakistan on October 17, 2021:

Thank you Misbah for such a lovely and beautiful comment, which made me smile ;-)

Allah bless you always my dear sister.

Amara (author) from Pakistan on October 17, 2021:

Pam

Thank you so much dear, Crowntail betta is also a favorite of mine, so beautiful.

Thanks for your visit and lovely comment.

Love & Peace to you.

Amara (author) from Pakistan on October 17, 2021:

Rozlin

Thank you, I am glad you loved it.

Blessings dear.

Bill Holland from Olympia, WA on October 17, 2021:

Stunning pictures! I love Betas for sure, the only ones on this list I have any experience with. Loved this article!

Miebakagh Fiberesima from Port Harcourt, Rivers State, NIGERIA. on October 16, 2021:

Equally with beautiful pictures.

Chitrangada Sharan from New Delhi, India on October 16, 2021:

Interesting and informative article about the most beautiful fish. I loved going through your well illustrated article. They are so beautiful.

Thank you for the education.

Miebakagh Fiberesima from Port Harcourt, Rivers State, NIGERIA. on October 16, 2021:

I enjoy the interesting read. Fish is my favorite protein. And you don't say a word of eating. Thanks.

Peggy Woods from Houston, Texas on October 16, 2021:

These fish are all beautiful, and it is good to know that many of them are not endangered. For those that are, it would be a less colorful world without them!

Misbah Sheikh from The World of Rebels. on October 16, 2021:

So interesting, educational, and full of life. I enjoyed learning about these beautiful fishes. Thank you so much for creating this informative article.

Blessings and love to you, dear sister

Pamela Oglesby from Sunny Florida on October 16, 2021:

All of these fish are sure beautiful The Crowntail betta fish and the Mandarinfish are my favorites. This is a wonderful, very informative article, Amara. Thank you for sharing this information. I really enjoyed reading it. Blessings for you!

Rozlin from UAE on October 16, 2021:

Interesting and informative article on most beautiful fish in the world. Well presented, Amara. I love the first fish. Thank you for sharing.

Take care and enjoy your weekend.

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