Here are the top 10 most beautiful fishes throughout the world. When you travel to a giant aquarium or underwater aquarium, you will enjoy the beauty when you saw thousands of most beautiful fish swimming around the aquarium. The mesmerizing feeling of warm sun rays leaning down into  tropical waters, and breaking back through the water’s vivid facade as it rebounds off the glistening scales of a rare fish provides an experience that stays in one’s memory for a lifetime.

10. Rainbow Parrot Fish
They called this most beautiful fishes with Rainbow Parrot fish because of their calcareous bird-like beaks. Parrot fish use these beaks to crush and eat the small invertebrates that live in coral. In most species, the initial phase is dull red, brown or grey, while the terminal phase is vividly green or blue with bright pink or yellow patches.


9. Clownfish
This most beautiful fishes also known as Anemonefish, Clownfish are some beautiful fish which generally consist of a yellow/orange body with white stripes along with black lining along it’s fins or black body with yellow/orange areas along it’s lower body and fins , though this depends upon the species of Clownfish and they come in various displays. Many show white bars or patches. The largest reach a length of 18 centimetres (7.1 in), while the smallest barely reach 10 centimetres (3.9 in).


8. Moorish Idol
Moorish idol is one of most beautiful fishes  and one of the most difficult fish to keep in a home aquarium (and very expensive as well), to most aquarists Moorish idol are the pinnacle of the hobby. With distinctively compressed and disk-like bodies, moorish idols stand out in contrasting bands of black, white and yellow which make them look very attractive to aquarium keepers.


7. Mantis Shrimp
Mantis Shrimp is most beautiful fishes because it have many beautiful colors that from shades of browns to bright neon color. Mantis shrimp appear in a variety of colours, from shades of browns to bright neon colours. Although they are common animals and among the most important predators in many shallow, tropical and sub-tropical marine habitats they are poorly understood as many species spend most of their life tucked away in burrows and holes.


6. Symphysodon
Symphysodon has a laterally compressed body shape which have beautiful pattern in all of the body. All Symphysodon species have a laterally compressed body shape. It is this body shape from which their common name, “discus”, is derived. The sides of the fish are frequently patterned in shades of green, red, brown, and blue. The height and length of the grown fish are both about 20–25 cm (8–10 in).


5. Nudibranch
Nudibranch is most beautiful fishes or people called “sea slugs”, is a very numerous in terms of species which very attractive and noticeable. A nudibranch is a member of what is now a taxonomic clade now, rather than a fish. Nudibranchs are very numerous in terms of species, and are often very attractive and noticeable. Among this group can be found the most colorful creatures on earth.


4. Clown Trigger Fish
Clown Trigger Fish is amazing brightly colored fishes which can found in relatively shallow, coastal habitats and especially at coral reefs. Triggerfishes are about 40 species of often brightly colored fishes of the family Balistidae. Often marked by lines and spots, this most beautiful fishes inhabit tropical and subtropical oceans throughout the world, with the greatest species richness in the Indo-Pacific.


3. Lion Fish
The lionfish is one of the most venomous fish on the ocean floor and most beautiful fishes. Lionfish have venomous dorsal spines that are used purely for defense. When threatened, the fish often faces its attacker in an upside down posture which brings its spines to bear. However, a lionfish’s sting is usually not fatal to humans. If a human is envenomed, that person will experience extreme pain, and possibly headaches, vomiting, and breathing difficulties. However they are one of the most beautiful and colorful fish.

2. Juvenile Emporer Angel Fish
Juvenile Emporer Angel Fish is a very famous fish which known to non-divers and Juveniles is one of the most beautiful fishes in the waters. They are dark blue with electric blue and white rings; adults have yellow and blue stripes, with black around the eyes. It takes about four years for an emperor angelfish to acquire its adult colouring. They grow to 40 cm (15.75 in) in length.


1. Mandarinfish
Mandarinfish or the mandarin dragonet is a small firsh, brightly-colored, and another member of the dragonet family, which is very popular. Not to be confused with Mandarin Fish (Chinese Perch). The mandarinfish or mandarin dragonet (Synchiropus splendidus), is a small, brightly-colored member of the dragonet family, which is popular in the saltwater aquarium trade is most beautiful fishes.