Most Beautiful Fish in the World

Bicolour Parrotfish

This fish is somewhat reminiscent of the parrot, because of its thick, prominent lips that resemble its beak. With its beak's help, it nibbles on coral reefs, chews the little creatures inside and spits out the leftovers of the inedible corals, meaning the way it eats it isn’t so different from the colored bird. But this isn’t the most impressive thing about this fish, because the amazing colors that color it are what make it so beautiful. It is considered to be one of the largest aquarium fish as it can reach a length of up to 1.2 meters.

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Moorish Idol

The Moorish Idol is the pin-up poster fish of coral reefs.

They are found in almost every underwater photographer’s portfolio, diving pamphlet and pet store painting.

This beautiful fish is native to the coral reefs of the Indo-Pacific Ocean, they have large thick vertical stripes in contrasting black and white. They also have a sunlight yellow patch towards the back of their body.

They have long snouts with a vibrant yellowy/orange mask running across. Moorish Idols have a long extravagant filament which trails out from the tip of the dorsal fin.

Interestingly they closely resemble Butterflyfish, but they are not in the same family despite sharing similar feeding habits.

They grow to 9 inches and are extremely difficult to keep in captivity due to the diet and tank size they require.

Betta Fish

Betta fish, also known as Siamese fighting fish, are one of the most popular aquarium fish.

They have been selectively bred to have bright colors and unique tails; and due to their aggressive nature, they were also bred to fight.

In the wild, Bettas don’t display the same beautiful colors that we have achieved through selective breeding in aquariums. They are a lot more dull, to blend in with their natural habitat – rice paddies and floodplains.

Bettas are labyrinth fish meaning they can breathe oxygen directly from the air, as well as taking in oxygen through their gills.

Picasso Triggerfish

Another beautiful fish is the Picasso Triggerfish; also known as the Humuhumu Triggerfish. Just like the artist it is named after, it has a wacky vibrant painted appearance.

With its tan colored body and blue/black stripes it looks almost cartoon like.

They are native to the Indo-Pacific Ocean, and in the aquarium they are an outgoing species that can learn to recognize their owner.

Triggerfish can however, also be aggressive and should be kept in a tank with other large fish of a similar size (around 10 inches). They also shouldn’t be kept with other Triggerfish.

Image: Радуга над морем, Небо, Облака, Горы, Лес, Море, Берег, Волны ... Found on Google from wallscloud.net

Juvenile Emperor Angelfish

Emperor Angelfish are some of the most beautiful fish in the world. As a juvenile it looks very different to the appearance they will have as an adult.
With a black body and light blue/white vertical lines on their face, they have three white curved bands on their body, with thinner light blue curves in between.

As they develop into adults, their coloring and patterning will completely change, so much so that they were thought to be three different species up until 1933.

Adults have yellow and blue stripes which stretch horizontally across their body.

These stunning fish reach lengths of up to 15 inches, however in captivity they usually grow to around 12 inches.

Banggai Cardinalfish

Banggai Cardinalfish are native to the Banggai Islands in Indonesia. These elegant, graceful fish are usually found resting between seagrass beds, coral ledges, and sea anemones during the day as they are nocturnal.

At night, they will feed in groups of up to 200, on plankton and other small crustaceans.

They are very sociable and need to be kept in groups of at least eight to ensure they are happy.

As long as these fish are given enough space, with plenty of hiding spots and barriers, they will be a delight to watch swim around.

If they are kept in a small tank, they will chase each other because they don’t have enough space.

Symphysodon Discus

This beautiful fish is often thought of as the king of the aquarium, it’s a stunning centerpiece and it’s not hard to see why.

From the front it looks very thin, but from the side they are a round disc shape. They usually reach around 6 inches in length and are very peaceful, elegant and graceful.

Also known as the Heckel Discus and the Pineapple Fish, Discus come in lots of different colors, but the red coloring is considered to be one of the most beautiful.

They are found in various areas of the Amazon River, and they are one of the most difficult species of freshwater fish to keep due to them requiring pristine water conditions, and being very picky eaters.

Threadfin Butterflyfish

This Butterflyfish is the centerpiece in many home aquariums; it has a beautifully bold personality to match its bold colors.

It reaches lengths of 9 inches and has a calm demeanor which is why it is one of the most photographed underwater fish.

Their body is pearly white and this blends into a bright yellow color towards the tail end, and up to the dorsal fins. It also has diagonal black perpendicular lines which create a chevron like pattern.

These fish require large tanks (a minimum of 100 gallons) and adapt well to aquarium life, making it a beautiful fish for beginners.