27 Cutest Fish For Aquarium (With Pictures)

Keeping an aquarium in your house can enhance your home beautifully. It’s one of the most popular decors of homes in the United States.


Aquarium lovers love to decorate their aquarium with cute fishes. It doesn’t matter if you have a saltwater aquarium or freshwater aquarium. We are going to give you a list of 12 cutest freshwater aquarium fishes and 15 cutest saltwater aquarium fishes.

If you are looking to keep a cute fish in your aquarium and you don’t know what will be your cutest fish collection for an aquarium that stay tuned with this article because I am going to give you the names of cutest fish that are ideal for aquarium habitat.

If you have saltwater aquarium then you can skip the freshwater cute fishes from the table of content to know the cute saltwater fishes that are ideal for aquarium.

And if you have freshwater aquarium then you can also skip to that part by using a table of content let’s begin with the 12 cutest freshwater fish for aquarium.


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Cutest Fish For Freshwater Aquarium

Male Betta ( Cutest Fish #1 )

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It’s in the first position of our list because it is one of the most popular fish between fish lovers and aquarium keepers. No doubts, why they are one of the most popular fish in the aquarium trade.


They are one of the true members of the gourami family that tend to be highly territorial. Male Betta fishes are known for their high level of aggression and can also attack each other if they need to.


They come in a variant of colors and you can easily buy one from your local pet fish store.


Danio Glofish ( Cutest Fish #2 )

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It comes in the second number of the list because they are known for their activeness and availability of lots of colors. They are one of the easiest to care fish of freshwater aquarium.


They are also popular for their brightest colors and they can come in yellow, red, black, grey, pink, green, blue, and many others.

Starfire Red Tiger Barb ( Cutest Fish #3 )

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They are one of the most popular native fish of freshwater aquarium and they’re popularly known as Tiger barb. We are mentioning here one of its kind that is known as Red Tiger barb.


They also come in different colors like green silver, blue, and many others with strike-off black and red color. All the tiger comes in the same size and has the same stripes in their body.


They tend to be aggressive if they are kept in numbers less than 5. They’re also known as fin nippers.

Electric Green Long Fin Tetra ( Cutest Fish #4 )

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Having an electric green long fin tetra fish in your aquarium can add brilliant color and excitement to any freshwater aquarium. They come with lifelong color and are completely harmless.


In one word they are wonderful fish that can survive in the freshwater tropical aquarium and require the same care as other freshwater fishes.


We are especially mentioning the green color because the green-colored long fin Tetra can attract anyone who loves keeping fishes in the aquarium.

Sunburst Orange Long Fin Tetra ( Cutest Fish #5 )

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Every Tetra comes with amazing colors in every generation. Tetras can come in a variant of neon colors and the sunburst orange color is one of the amazing colors that can add excitement and amazing color to your freshwater aquarium.


Sunburst Orange long fin Tetra is one of the cutest fish of freshwater aquarium.

Tiger Oscar Cichlid ( Cutest Fish #6 )

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You may think that it’s not the cutest fish of freshwater aquarium but we will tell you why we listed at Tiger Oscar Cichlid in our freshwater cutest fish list.


Actually, they are one of the most popular freshwater aquarium fish that have been petted for centuries in Europe and the United States.


They come with a variety of colors with stripes of red, yellow, and orange in it. They can also add brilliant color to your aquarium and can enhance its beauty.


Pictus Catfish ( Cutest Fish #7 )

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In our cutest fish list, Pictus catfish managed to make its place because of its popularity within the aquarium trade. They can stand out any fish in any tank because of the noticeable activeness they are also known as angel cats.


They do well when they are kept in a large aquarium by which we mean in an aquarium that has the capacity to hold more than 100 + gallon water.

Long Finned Zebra Danio ( Cutest Fish #8 )

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They are one of the most loyal and popular fish in the United States. But even they are one of the cutest fish, they need special care as they require a varied diet of frozen foods and FLAKES.


Well, male’s size and shape normally differ from females but they remain loyal to one female. It’s strange that a fish can also be loyal to one female.

Blondie Delta Guppy ( Cutest Fish #9 )

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There is no list of freshwater aquarium fish where you can’t find guppies. In our cutest fish list, blondie Delta guppies manage to find its place because guppies are one of the most popular fish in the United States and Asia.


They come with a body that has an orange color in it. They can tolerate any change made in the tank condition. But they require at least 20 gallons of water in the tank to survive and live a happy life.

Gourami ( Cutest Fish #10 )

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Looking for the blue one if you are then gouramis can add and fulfill your aquarium need of colors. They come with a variant of color but the most popular color is blue – orange with the pink tail.


They can breathe at the surface by which means they can breathe the air because they have an organ known as Labyrinth organ that acts short of Like a lung. This organ allows them to live in oxygen-poor water, shallow water, and stagnant water.

Crowntail Betta ( Cutest Fish #11 )

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Yes, there is another Betta that made its place in our cutest fish list. Crowntail Betta is one of the most populous small freshwater fish in the United States and that only popular for one main reason and that is a beautiful caudal fin.


They look amazing and can add beauty to your aquarium they are also named as Siamese fighting fish. If you are really looking to have an amazing beautiful fish then you must consider a crown tail Betta and from our viewpoint, we would recommend the blue color.

Velvet Wag Swordtail ( Cutest Fish #12 )

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Especially red velvet color of the wag swordtail is a unique color and more popular swordtail fish. They usually come in a saturated red color that can also appear as Orange fade, red fade, and orange.


They also come with blue color tails. In terms of cuteness, we would recommend you to adopt the male ones because they are smaller than the female ones. Even they come in the last position of the cutest fish list, velvet wag swordtail managed to find its place.


Cutest fish for saltwater aquarium

Green Bird Wrasse ( Cutest Fish #13 )

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It is one of the most beautiful Emerald green fish that are really popular in the United States as saltwater fish. We would recommend you adopt the male one especially because it comes in the emerald green color and can add beauty to your aquarium.


You can also adopt a female one as it comes with some white Sprinkle with tiny black spots in the body and in front its fins are painted with dark brown to the tail. No doubt they are in the first position of our cutest fish of saltwater aquarium.

Strawberry Dottyback ( Cutest Fish #14 )

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You can check the pictures that I have shown above and can easily know why they are on our list. Of course for its amazing appearance. They look amazingly beautiful and can enhance your saltwater aquarium.


They can come in a variant of color like orange, purple, center, and many others but they need at least 30 gallons of the saltwater aquarium to survive for less than 30 gallons is not ideal for strawberry dotty back fishes.

Ocellaris Clownfish ( Cutest Fish #15 )

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Have you seen the movie, yes we are talking about the movie “Nemo”? It was the Ocellaris clownfish, the hero of the movie. They’re also popularly known as false Ocellaris clownfish and clownfish.


They come in different colors which actually depend upon where they live and their habitat. They can make great pets and can enhance your aquarium appearance for sure. Everybody will notice and appreciate clownfish fish if you keep them in your aquarium.


Randall’s Goby ( Cutest Fish #16 )

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If goby don’t make in the list of cutest fish of saltwater aquarium then the list is not accurate or perfect. Here we are talking about Randall’s Goby because they make excellent pets as Nano fish.


They are popular for their peaceful nature and it can survive in a mixed diet. The diet can include Mysis shrimp and finely chopped meaty foods. You need to feed them once or twice a day.

Male Square Back Anthias ( Cutest Fish #17 )

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It’s one of the most famous and popular saltwater sea fish that comes with lots of spunk. Female comes with the color yellow to orange while the male square back anthias come with pink to Red.


They have a square pattern in the central body, that can be easily noticeable. However, they need at least 90 gallons of the aquarium to survive.

Carpenter Flasher Wrasse ( Cutest Fish #18 )

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They are also very popular saltwater fish that are the native of the Western Pacific Ocean. You can find it in any fish Store as they are very popular in the aquarium trade.


Carpenter flasher Wrasse comes with a size of a maximum of 3.1 inches. They can also come in different color but the most popular one is orange with blue vertical stripes.

Green Chromis ( Cutest Fish #19 )

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Green Chromis are native of the Indo Pacific Ocean and South Pacific. They are also very popular as saltwater aquarium fish. They are perfect for personal saltwater aquarium habitat and can add amazing color to your aquarium.


The most popular color is green that is why we mention the green Chromis. It is very easy to care for fish and is popular for their beauty, cute appearance, and peaceful nature.

Domino Damsel ( Cutest Fish #20 )

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You may wonder why they are in the list of the cutest face but we listed them because of its amazing black color. With three white top spots, they look amazingly cute and from our perspective, they are very cute fish.


They are also very day-active species of a damsel. They usually inhabit the rocky surface and Coral waves. They are also popularly known as three-spot damselfish. That is why we listed them on our list and the most popular color is black.

Rainford Goby ( Cutest Fish #21 )

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Here’s again, we listed a goby in our list of cutest fish and it’s the red Ford, No doubts about why they’re on our list. They are popular for their timid and peaceful nature and can add extra beauty to your aquarium.


They can easily get along with other fish and they make good companions. They’re also referred to as Court justice goby. They were first discovered in the Western Pacific in mid-1944. they got its name from its brightly colored body.


They feature a blue and green body and can have Orange stripes in it, you can find the orange stripes running the entire length of the goby’s body.

It is a very small species of goby and deserves to be listed in this cute saltwater fish list. Don’t keep them with Betta fish because they can’t survive if they are bullied by them.

Spotted Mandarin Goby ( Cutest Fish #22 )

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Again, there is another goby and it’s one of the most beautiful species of the gobies in the entire marine aquarium trade. They are popularly known as a spotted Mandarin goby and picture dragonet.


Its whole body, face, and tail are fully covered with an explosion of colors. It can enhance any saltwater fish aquarium beauty and can be easily recognizable to guests as well as fish lovers.

Catalina Goby ( Cutest Fish #23 )

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I hope you are not feeling exhausted by hearing the name of goby because we can’t do much as they deserve its place in the cutest fish of saltwater aquarium.


They are also very popular for their amazing appearance, they come in red color with vivid blue and red stripes. They are popular and irresistible nano fish and can easily put other gobies to shame by its appearance. They are the native of the cold waters of the Eastern Pacific coast of the United States. They can easily tolerate warm and tropical temperatures but only for a short time.

Red Scooter Blenny ( Cutest Fish #24 )

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They also manage to find its place in the cutest fish list because they come with an amazing appearance and are irresistible to the aquarium traders. It comes with a large head and small body.


They also have a small pointed mouth that is always prepared to take food. They need a carnivorous diet in order to survive. They come in different color but the most popular one is red with white and large dark spots.

Female Lyretail Anthias ( Cutest Fish #25 )

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They also manage to find its place in the cutest fish list. They are popularly known as scale fin and the male comes with a bright red color. On the other hand, female lyretail anthias tend to be more orange in color.


They are sexually dimorphic and some females can also change their sex if they are kept in the group of females with no males. On the other hand, they can also be a male if they are the largest female in the group.


They come in different color light purple and orange and its fin can also be an indifferent color like yellow, red, and orange.


Antennata Lionfish ( Cutest Fish #26 )

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You can see the picture and guess why they make its place in the cutest fish list. They feature very special appearance and they’re popularly known as spot fin lionfish.


They come in different colors like Red, White, and Black and can also have stripes in red, white, and black. They need at least 50 gallons of water in order to survive and live a happy life. Their diet only consists of carnivore ingredients.

They easily enhance and influence your aquarium beauty and can add special appearance in it. They can also Survive in 30 gallons of the aquarium if it has a number of hiding places.

Purple Tang ( Cutest Fish #27 )

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Last but not the least, purple tang fish also manage to make their place in the cutest fish list because of its amazing purple color. They tend to have yellowtail.


They are also very popular saltwater fish in the aquarium trade. Due to its vivid coloration pattern, they can add color to your tank. They can also be very aggressive and they don’t do well with other fish.


Apart from that, they also require a large tank/aquarium to survive. They look very gorgeous due to its purple-blue colored body and bright yellowtail.

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94% of pet owners say their animal pal makes them smile more than once a day. I love animals and the more boys I meet, the more I love my dogs. In 2007, I realized that I was made for saving Animals. Caring for animals is not What I do, it's who I am. My father is a Veterinarian and I think every pet deserves great Veterinarian. I started this blog "InPetCare" in 2019 with my father and expecting to help people and their furry friends as much as I can.

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