If you are in the market for a new favorite, think about picking out the Most Popular Colorful Fish.
These aquatic species are very colorful and extremely fun to watch.
In fact, most people who have them have at least one of each fish.
Aquariums are available in a variety of colors, which means that you can select the ones that work best for your needs.
Remember that the Most Popular Colorful Fish is chosen based on their beauty, color intensity, type of gravel used, quality of decor, and substrate used.
Once you decide on the style and color of your next fish tank, you’ll be able to choose the most popular fish that will best fit your needs.
Knowing how to choose a new fish can be a daunting task.
Each fish type has its own distinguishing characteristics, some of which can be surprising.
Now let’s jump in and see how colorful and beautiful they are.
Table of Contents
Most Popular Colorful Fish You Will Love To See.
Mandarinfish or mandarin dragonet is also known as Synchiropus splendidus is a saltwater fish from a family of dragonet.
It is small and brightly colored.
The most popular and colorful of this fish family is called Striped Mandarinfish.
Mandarinfish is 1 out of the only 2 vertebrate species that have a blue coloring.
And this is due to the fact that they have cellular pigment.
Mandarinfish originates from the pacific, Ryukyu Islands south to Australia.
It usually dwells and found in warmer waters.
Also, it has a shape more like the goby.
A blue base that is highlighted along with pronounced orange stripes.
It has a blue-greenish face and bold blue stripes.
Usually, it walks on the seafloor using its large pelvic fin and that makes it to be mistaking seen as pectoral fins.
Whereas the original pectoral fin is located at the center and very transparent to see.
Mandarinfish is slow in movement and prefers sheltered lagoons and inshore reefs.
In terms of housing, this fish is very difficult because of their feeding requirement.
Mandarinfish eats small crustaceans and other invertebrates.
They don’t go with frozen or pellet food but only eat live food.
So, if you’re a complete beginner, this might be very expensive for you due to the complexity of the growing, storing, and harvesting of live foods for them.
And they eat continuously every time.
They don’t adapt to aquarium life, because their feeding habits are too specific.
Also, Mandarinfish instead of having scale they have a layer of debatably smelly and bitter slime.
This is to their advantage as it protects them from disease and also discourages predators.
But on the other side, they are beautiful and have vibrant colors you will always love.
2. Flowerhorn Cichlid.
Flowerhorn Cichlid was first to recognize due to the pronounced color and the shape of the head which is distinct.
Developed in Malaysia, Thailand, and Taiwan and later become popular in Asia.
And as they grow from small to maturity their coloration and pattern also change as well.
So, if it is because of the color that you want to but, it better to buy the full-grown one.
This their protuberance head is usually called nuchal hump.
Flowerhorn Cichlid is man-made hybrids and only exist due to their release in the wild.
They have a life-span of about 10-12 years and with a water temperature of 80–85 °F, and a pH of 7.4–8.0.
If you’re getting a tank, a minimum of 40 gallons, with 75 gallons will be ideal.
And if you think of breeding, then 150 gallons or more will be required.
Flowerhorn Cichlid is very aggressive and territorial, that’s why 2 or more of it cannot stay together.
The other option of having them together is to divide the tank by using egg crates or acrylic dividers.
And to know the male and female of Flowerhorn cichlids is by size.
The male is bigger than the female and the color is also brighter and pronounced.
Also, they have longer anal and dorsal fins as well.
Their mouth is thicker compare to the female.
The female has a black dot on their dorsal fin, with an orange belly mostly when they are ready for breeding.
Another beautiful thing about the grown female is that they do lay eggs monthly without the male involved.
Flowerhorn Cichlid can grow up to about 16 inches, meaning you need a bigger tank if you want to have them.
3. Juvenile Emperor Angelfish.
These fish always stand out in any aquarium due to the fascinating electrical color.
This color is in a dark black body with light blue/white highlighted around the body.
It is a species of marine angelfish and reef-associated area with a depth starting from 1–100mtr.
This fish takes about 24 – 30 months to grow to an adult coloring.
The adult color is yellow and blue stripes, with black around the eyes.
While the juveniles have dark blue with electric blue and white rings.
Most times the full-grown adult is about 40 cm (15.748 inches) in length.
Emperor Angelfish behave like cleaner fish that feeds off parasite and dead skin of bigger fish species.
Emperor Angelfish is omnivorous and feeds on both small invertebrates and plants.
The equally eat sponges and algae.
They have bulky and strong jaws making it easy for them to chew sponges easily.
The males are very territorial and their temperament is semi-aggressive.
The minimum tank size to house Emperor Angelfish should be minimum 125 gallons as they easily adapt to captivity.
Discus (Symphysodon) is a freshwater and very colorful fish and can grow up to 8 inches long.
It has a bright color, distinctive shape, patterns, and behavior.
Discus is a very social fish and always moving in a group.
They have a very good sense of parenting and caring for the young ones.
Also, they do stay with the young once in the first 2 weeks so as to allow them to be able to eat easily.
Thereafter, they will swim away leaving the young ones to care for their selves.
And within once year they are sexually mature.
With the extended finnage that is absent make Discus has a rounded shape.
It has a shaded pattern of green, red, brown, and blue color.
Some of these colors are the result of aquarists breeding results.
So if you go to the wild you might not see some of these colors on the fish.
The weight of the adult of Discus is around 150–250 g.
The Discus male in most cases is bigger in size than the female.
And for those that are bred, the color of the females for example solid red discus (red melon, red cover) are usually more pronounced than the male Discus.
Discus eat algae, plant material, and detritus (periphyton).
They likewise eat small invertebrates which make up to 38% of the content in their stomach during high water season.
But it decreases during the low water season in the wild.
Discus relatively has a very long intestine.
They are always difficult to keep in an aquarium as they require a regular change of water and in high volume.
Discus can live for about 15 years if properly taken care of by the aquarist and do grow up to about 8 inches.
Some of Discus tank mates are as follows: cardinal tetras, German blue rams, along with other fish from the same water condition and region.
So, if you consider have them in your tank, the tank should be a minimum of 55-75 gallons.
Most Popular Colorful Fish
5. Clown Triggerfish
Clown triggerfish (Balistoides conspicillum) also popularly known as big spotted triggerfish are really beautiful and colorful fish.
They belong to the family of Balistidae usually called triggerfish.
Clown triggerfish do grow to about 50cm with a stocky appearance body, oval in shape, and compressed.
It has a small mouth with a yellowish ring also surrounded by another with a ring around the mouth.
And with several spots of white and a black background more like a leopard’s pattern around the dorsal fins and side of the body.
They live in the rock, but not reef compatible.
It has a dorsal fin of three spines, with each longer than the other and also stronger.
Clown Triggerfish has a big head almost 1/3 of the body size with strong teeth and a small mouth.
It has a white stripe is strikes through the nose under the eyes.
They are distributed throughout the tropical and subtropical water of the Indian ocean.
They do stay and swim along external reef slopes and up to the depth of 75m.
While the juveniles take and stay in about 20m mostly close to caves.
Clown Triggerfish east variety of organisms found the benthic zone like echinoderms, molluscs, and crustaceans.
Its behavior and activity are diurnal, but always in solitary and defending territory.
Clown Triggerfish is very aggressive with other fish.
And most cases using the dorsal spine as a defensive tool to scare away the predator.
Clown Triggerfish is one of the most prize aquarium fish because of the color and attraction.
You need a big tank due to the aggressive nature of the fish.
It also does prey on invertebrates in the tank.
Although Clown Triggerfish can be tamed to be hand-fed you have to be very careful of those sharp teeth.
Most Popular Colorful Fish
6. Rainbow Parrotfish.
Rainbow Parrotfish (Scarus guacamaia) species belong to the family of family Scaridae.
You need about (200 gallons) and plenty of food to have this fish in your aquarium.
Also ensure that the tank is prepared to their natural habitat, with slow-moving water.
Their teeth are stuck together to form a beak which makes them be able to scrape algae easily from coral.
When it matured it grows to reach about 1.2 m (3.9 ft) in length, 20 kg in weight, and with a lifespan of about the maximum age of 16 years (all things being equal).
And that makes it the largest member of its family and in the Atlantic.
The coloration is greenish-brown and the fins are dull orange, while the tongues are green.
Both the male and female appear the same as their dental plate looking blue-green.
Most Popular Colorful Fish
7. Peacock Cichlid.
This is one of the most peaceful of all in this species.
They thrive in warm waters that have a slightly basic pH.
Also, they are a genus of haplochromine cichlids and nonaggressive cichlids.
They are mouthbrooders.
Likewise, they keep their offspring in their mouth as parented care in an extended time.
They are sexually dichromic.
This is a systematic difference whereby the same species display different features beyond the differences in their sexual organs.
As per tank mates and with enough space they flow along with other cichlids such as the Flowerhorn.
Peacock Cichlid males have the most vibrant color.
They have similar habitat requirements like freshwater fishes.
Most Popular Colorful Fish
Clownfish popularly known as anemonefish belong to the subfamily Amphiprioninae.
For the largest, they can get to a length of 17 cm (6.7 in).
While the smallest of them all do barely achieve 7–8 cm (2.8–3.1 in).
As known for years, Clownfish have close and long-term biological interaction with sea anemones.
This relationship also covers protection whereby; sea anemone protects the anemonefish from predators.
Also, they provide food through the scraps of anemone’s food and dead anemone tentacles and also act as a safe nest.
While in appreciation the anemonefish protects the anemone from its predators and parasites.
Due to the different species that are available, anemonefish have an overall yellow, orange, or reddish or blackish color.
In fact, a lot of them show white bars or patches.
Clownfish are omnivorous and do eat animals and plants, and while in the wild they are known to also eat small zooplankton and algae.
They feed on undigested food from their host anemones and also the anemonefish serves as nutrients for the sea anemone.
They are saltwater fish, hardy but very simple to breed in aquariums using good and required tank and habitation.
Clownfish can be easily found in the bottom of shallow seas in sheltered reefs or in shallow lagoons.
Also, Clownfish have a strict dominance hierarchy within themselves selves making the biggest and aggressive to be at the top.
Their method of reproduction is external fertilization
Clownfish are sequential hermaphrodites, whereby they develop into males first, and then later when matured, they become females.
They do lay their egg at the surface and also close to anemones.
And the male protects the eggs till about 6-10 days that they will be hatch and the hatching takes with 2hrs.
Most Popular Colorful Fish
Killifish belong to a huge family of oviparous (egg-laying) cyprinodontiform fish.
They include Aplocheilidae, Cyprinodontidae, Fundulidae, Profundulidae, and Valenciidae.
This family is over 1270 species of Killifish.
They can easily be found in seasonal pools of water that provide habitat for distinctive plants and animals normally called ephemeral waters.
Sometimes, some of the eggs do experience delays in development.
Which is in response to normal and recurring periods of opposing ecological conditions.
Although the egg does not survive more than a few weeks if fully buried in water.
Several Killifish are very small and from about one to two inches (2.5 to 5 cm), and for the largest species they grow to just under six inches which is (15cm).
The most favorite color of Killifish is Blue Lyretail Killifish.
With a blue-silver fish, it has red spots and a yellow/golden stripes at the top.
Male killing color is more ideal for an aquarium as it is the most colorful and has a vivid coloration.
Most of the Killifish are very peaceful and have a lifespan of about 5year (species dependent) and their sizes are about 2-9cm.
They are Carnivore and also belong to the family of Cyprinodontiformes.
You need a minimum of 20 gallons’ tank size for their housing.
And of course, the tank habitation is very simple and comprises of bare floor, minimal light, sponge filter.
Killifish males are much colorful and brighter than the females and their head is flat at the top with their mouths at the tip of their face.
They have curved teeth, pointed and curved.
They are good at swimming, making their slim body shape to be an advantage.
And also, large dorsal and anal fins are noticeable in the males of most species.
Killifish can be found in fresh or brackish water, mostly in streams, rivers, and lakes.
While some specialized ones live in temporary ponds or flood plains.
Their lifespan is between 2-3yrs.
They easily grow in population and can be territorial while some species will shoal.
Killifish are always scared of predators and that’s why they avoid going down near-surface water.
Most Popular Colorful Fish
10. Golden Sailfin Molly.
The Golden Sailfish Molly is a very beautiful fish that can make a wonderful addition to any tropical aquarium.
It is also very easy to maintain.
This fish is one of the most versatile freshwater fish that you can get for a beginner.
You can have it in a small planted tank or a large aquarium with several hundred gallons of water, it will do well in either aquarium.
The Golden Sailfin Molly variety has a bright orange to the red body with bright green to yellow colored fins.
Its scales are bright and they appear as if they are glittering.
To keep this species of fish in captivity, the freshwater pH level should be around 7.5, and the water temperature range should be from 70-82 degrees Fahrenheit.
The main feeding habit of this species of fish is to eat plankton, which is found floating in the tank.
There are three types of food your Sailfish Mollusk can eat.
They include plankton that has been caught on driftwood, krill that swim in the tank, and worms that are being prepared on your tank filter.
When you decide to introduce your Golden Sailfin Molly into an aquarium, there are a few things that you need to consider.
First of all, make sure you place it in an aquarium where there is plenty of covers.
This is because it will be the reason behind the reason why it is able to hide its body.
Once the cover is there, you can put the food inside a fish holding area and slowly feed it to your fish.
Another thing you need to do is to make sure the pH level of the water is right.
Make sure you check your saltwater aquarium regularly and make sure that the water is well circulated.
Also, make sure that your fish are doing well in the tank and you can be assured that this marine fish will bring out the best from any tank you have.
The Golden Sailfin Molly is an exciting and gentle fish which are very popularly referred to as “livebearers”.
Also, the Golden Sailfin Molly is usually found in freshwater habitats such as rivers, swamps, lakes, and ponds and it is very adaptable to these different aquatic environments.
Although the Golden Sailfin Molly prefers to exist in clean freshwater areas, it is equally at home in saltwater aquariums.
The Golden Sailfin Molly has a natural tendency to grow up to about 5 inches.
Therefore it can become quite noticeable and difficult to keep the fish in a medium-sized aquarium.
Because of this, it is important to ensure that the fish is given sufficient space.
The same is true when you are keeping this fish in a small aquarium.
Most Popular Colorful Fish
11. Electric Blue Ram.
Electric blue ram fish – Dwarf butterfly cichlids or fish of the blue morph family is a very popular and beautiful freshwater fish available all over the world.
The male dwarf butterfly ram can grow to exceed 7 inches (20 cm) in length, but the female fish typically remains a little smaller.
Their dorsal fin extends to just below the surface of the water, while their tail is white with blue-green stripes.
Both sexes have a unique combination of characteristics that make them so appealing to both hobbyists and aquarium hobbyists alike.
They have brilliant blue beauty, and coloration, as well as strong features that make them a pleasure to see and live within the aquarium.
Both sexes of electric blue ram fish are equally beautiful and have similar feeding patterns.
These characteristics include a preference for feeding on floating plants and vegetation, as well as algae and other living objects that they find attractive.
Electric bluefish have a tendency to be rather aggressive towards other fish.
This makes them unsuitable as fish food for beginners.
The males are very aggressive toward other male fish, while females will attack other female fish.
Males tend to be less aggressive than females, but they will still aggressively defend their territory.
In some cases, this aggression can lead to fighting between males and females.
If you buy fish from the wild, you should know what to do with them.
Wild fish are fed on by other fish and have the tendency to fight among themselves.
Even though fish have no means of self-defense when a fish is fed by another fish they may not be able to defend themselves.
As a result, the feeding might lead to the death of one or both fish.
When buying an aquarium for an established fish that has already established itself in a well-furnished tank, you should purchase fish that do not have such tendencies.
However, you should also make certain that the aquarium you are planning on putting your fish in is adequately sized and equipped to keep your fish safe.
Ram fish like to eat several different kinds of foods.
Some common foods eaten by these fish include algae, worms, insects, and other live and frozen foods, depending on their species.
When purchasing live foods for your aquarium Ram fish, it is important that they be compatible with the other fish in the tank.
They will most often eat the same types of food as other fish, but there are some species of ram that have special diets.
For example, Dwarf Cichlids, like most cichlids, will eat live worms.
You will also find that many fish will eat flake foods, although you will want to avoid too many algae in the tank, as algae tend to feed on most fish.
The fish will also be able to eat other forms of food that the other fish in the tank are unable to eat, including nauplii.
You can buy pellets in varying amounts in order to increase the nutritional value of the water.
If you are unable to obtain your fish a good supply of pellets from the pet store, you may consider buying fish pellets from a fish store that specializes in fish food.
This will also provide your fish with protein.
The other type of food that your fish will eat is what is called a “fish food supplement”.
A supplement can be either liquid or dry form. It can consist of algae, flakes, or other types of food for your fish.
These supplements will also provide your fish with vitamins and minerals that may be lacking in their regular diet.
If you keep your Ram fish in a tank that has live plants, it is a good idea to introduce some of these into the aquarium.
Most of the fish will love the idea of a plant in their tank.
They will also need to drink water.
They will be much more active in a plant-filled tank and you will find that these will attract other fish to the tank as well.
The recommended temperature for these fish is 78.8° – 86° F (26° – 30° C) and the pH is 6.0 – 7.5.
While the recommended tank size should be a minimum of 20-30 gallons depending on the numbers of the fish you want to keep.
Before you put your fish into an aquarium, it is a good idea to research the type of fish you want and their requirements.
This will help you make a wise choice when buying an aquarium for your fish.
Most Popular Colorful Fish
12. Royal Gramma.
The royal gramma fish sometimes called the fairy basslet, is in the family Grammatidae native to tropical reef habitats of the subtropical western Atlantic.
They are usually kept as fish for their brightly colored fleshy fins and their distinctive spiny backs and tail.
This species of angelfish can grow up to three inches in length and have a normal lifespan of around five years.
There are several species of this fish but they all belong to one group of angelfish – the fairy Basslets.
The Royal Gramma fish is different from other species of this family because it has a long, hooked dorsal fin.
It has small, rounded pectoral fins and an undulating, narrow tail with golden yellow in color.
These fish are generally large enough to have an impressive display in any aquarium.
This species has a wide range of colors, ranging from Purple or violet and yellow.
They have fleshy fins that appear white when wet but turn red and orange when they are dry.
Males sport a yellow-colored dorsal fin and a Purple or violet colored pelvic fin.
Females also have a yellow tail and a Purple or violet dorsal fin.
These fish make some stunning, beautiful displays in freshwater aquariums and are very easy to care for.
They can reach lengths of three inches and they should never be overfed.
Their diet should consist mainly of live or frozen brine shrimp and live plants including zooplankton and phytoplankton.
They also need protein and calcium for growth.
These fish require little maintenance and should not be stressed by constant changes in their living conditions in a marine aquarium.
They can survive in both saltwater and freshwater aquariums and tolerate a wide range of conditions.
Some fish tank mates such as guppies and guano worms may be dangerous to them, so these fish should only be kept together in tanks where these live and not in a separate tank.
They will do best if they are kept with tank mates that are close to their preferred habitat.
If the marine aquarium cannot provide a habitat similar to theirs they should be separated and a larger tank used.
If you are keeping this fish in your home aquarium then you will want to give them plenty of food, exercise, and water that contains good bacteria and live rocks.
They will also need a few rocks that can provide them with cover and hiding places when they are not showing off their brightly colored fins and colorful tail.
Most Popular Colorful Fish
13. Crowntail Betta.
The Crowntail Bettas is easily one of the best looking small freshwater fish in the world today!
Their bright, colorful, and graceful caudal fin is simply one of a kind!
The first evidence of these fish being around the waters of Thailand can be traced back to the early eighties.
However, they were not taken seriously until recent years when they were featured on numerous shows as pets of choice for people who wanted to have some of the friendliest fish around.
The ancestors of this species are known to be indigenous to Southeast Asia (formerly Siam), Thailand, and other places in the region.
The Crowsnest Betta fish is an aggressive fish and is not the type of fish that you would want to keep with a little one.
They tend to eat the smaller fish out of fear and have been known to even attack small children that happen to be in the same tank.
Also, they are considered to be very aggressive and can be quite territorial so they may want to be kept alone at first until their aggression levels are under control.
This is a fish that is more than willing to fight and they do tend to be very aggressive.
There are many different things that are recommended for this type of fish.
The first thing that people should do is to make sure they choose a proper tank size.
Most of these fish are bottom feeders so keep the tank relatively shallow for feeding.
An aquarium heater will help to keep the temperature steady and add a bit of additional filtration and lighting to the aquarium.
As far as a substrate for the tank to go with gravel, rock, leaf litter, or sand, and it should be something that is not too hard.
Most Popular Colorful Fish You Will Love To See.
If you are looking for the most popular colorful fish you will love to see, then you have come to the right place.
This is the list of the most popular and coolest of the tropical fish species in the world.
But, this is not an exact science.
There are so many factors to take into consideration when you are comparing fish that it is impossible to get a straight answer out of this list.
There is no one way to decide which fish is the most popular or which one is the coolest or which species you want to see the most.
Depending on what you wish to go for.
Most people who enjoy fishing would say that if they can, they would like to see as many of the fish in their local fish market.
Sometimes this could just be the truth.
For most people who are looking for the most popular and coolest tropical fish, they would rather stay at home and look for their own personal specimens.
This may include a little bit of research, but it is also possible to buy these fish online.
However, there are several factors you need to take into account before you do this.
First off, make sure you know exactly what you are looking for in the fish that you wish to purchase.
Is it size or color?
Do you have any specific preferences in mind when you look at a particular fish?
You need to be sure that the fish you want to buy is going to be compatible with your aquarium.
If you are purchasing fish for children, then you should know that they can sometimes be allergic to certain fish.
And, if you are purchasing fish for the aquarium, then you need to know exactly what you want in the fish that you wish to buy.
Once you know what it is that you want, you can go on a little bit of a quest and find it.