15 Exotic Freshwater Aquarium Fish

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Fish are beneficial pets to human health and can help calm hysterical kids.

A higher number of fish in your aquarium have the power to capture a person’s attention and in the process improve their moods. What’s more, is that if you spend a lot of time watching the movements of fish and other aquarium dwellers then the rate of your heartbeat will be improved and people suffering from high blood pressure will experience a drop. 

There are so many types of fish that you can choose from, for your fish tank, there are those with more than one color on their bodies, and others with fancy elongated tails, all of which aim to enhance the cosmetic appearance of your aquarium. We will, therefore, sample a few exotic and cool freshwater aquarium fish that you could incorporate into your fish tank, this is to help you take the guesswork out of the process. 

15 Exotic and Cool Freshwater Aquarium Fish

1. The Betta Fish (Siamese fighting fish)

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Watching the betta fish fight can be quite entertaining, however, you will most likely not like the results at the end, as either fish or one of them might end up being hurt. The male Betta has a history of being very aggressive when compared to their female counterparts. However, they are very colorful and are bound to enhance the outlook of your aquarium, but don’t pair it with long fined and colorful fish’s to avoid bringing out its wild side.

2. Goldfish 

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Goldfish are particularly hardy only that you have to create for it some good space and avoid pairing it with other aquarium animals that can fit in its mouth. They are available in a variety of colors and have a long life span as long as they are provided with good water conditions. Goldfish is a freshwater fish and reigns from East Asia. 

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3. Killifish 

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Killifish are a beautiful exotic fish that can be adopted by people who have the desktop aquarium; they do qualify for both the species and community tank as they are by nature peaceful. And to enhance peace in the aquarium refrain from keeping the male killifish together and don’t put any that looks like the male because controversy will surely rise.

Before you adopt one, check on its life span because of the 1270 species there are some that have a very short lifespan of 3 or 9 months and then will easily break your heart so choose wisely. 

4. Pearl Gourami

Pearl Gourami

The pearl gourami are a large size fish and you should, therefore, invest in a big fish tank, their natural habitat consists of heavy vegetation with less lighting, a thing that you might want to replicate if you want to keep your gourami happy. They mostly do well in acidic water but are adaptable to different water conditions. 

Aquarists love this specific fish because of its ability to combat the stubborn hydra without being affected by its venom. 

5. Molly


Mollies are a community tank type of fish that do not take bullying lightly if you have incorporated live plants in your aquarium, which you should just know that they are going to nibble on them. In the wild mollies are found in freshwater streams, and will rarely survive in unkempt tanks, so be ready to go the extra mile when it comes to cleaning. 

Breeding the molly is not a tough job when compared to some other aquarium fishes but if you are not ready for the donkey work please just invest in one, because they are normally more than eager to breed.

6. The Green Swordtail 

green swordtail

Green swordtail is a livebearer, so don’t expect to see eggs if you are maintaining a species only fish tank. Their name must have scared the hell out of you I suppose but not to worry because the aggressiveness is only in the tail and its name, otherwise it is a very peaceful fish and will strive to make friends while maintaining a peaceful atmosphere in the aquarium. 

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7. Bristlenose Pleco

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Bristlenose catfish are native to the freshwaters of Panama and South America. The good thing about the bristlenose is that they are adaptable to a variety of water conditions, the males are however very aggressive and should not be incorporated in the same fish tank. Bristlenose is an interesting fish for your home aquarium and you can be sure of a few entertaining stunts. Breeding the catfish is not as easy as rearing it. 

8. The Neon Tetra

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If you are keeping lazy fish in your aquarium and need them to do a little jogging then get a Neon Tetra. The fish is very vibrant and will tease other fish’s in the aquarium by chasing them around without the intent of hurting them. While in the wild the tetras can live for up to 10 years but will only give you 5 years in captivity. 

Neon tetras are a school type of fish so to prevent them from being stressed; you can keep them in a school of six. 

9. The Oscar fish

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The one good thing about the oscar fish is that it is very intelligent and can even be taught a few tricks, including responding to its name. However, it is very aggressive to be kept with the small type of fish, you could, therefore, pair the Oscar with similar aggressive fish but provide enough space. 

If you decide to keep the Oscar brace yourself for the hard work when it comes to feeding and aquarium cleaning because of its enhanced waste production. 

10. Angelfish 


angelfish are graceful swimmers, and you will mostly find them in dimly lit areas with quiet and slow-moving waters, a thing that you should replicate in your aquarium. While in captivity the angle fish will thrive in a range of water conditions but be sure to make it a little bit warm. You will also need to invest in a big fish tank as they tend to grow very big. 

11. Zebra danios

Zebra danios

Zebra Danios are a shoaling type of fish, so if you decide to go down this route, plan on getting at least six for your aquarium. They are a hardy fish and caring for them does not involve a steep learning curve. An interesting fact about the danio is that it can jump out of the aquarium and give you a run for your fish, so ensure to get a fish tank with a sturdy hood. 

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12. The discus


The discus fish has the ability to grow to a staggering 20 centimeters, novice fish keepers should therefore, keep off this one because of its complex needs. They can, however, make good tank mates when paired with clown loaches or the glowlight tetras. Acquiring the discus fish from the pet shop can be quite expensive because breeding them is quite involving. 

13. The rainbow fish 

rainbow fish

The rainbow fish only shows its colors as it enters adulthood, they are a peaceful community fish. keeping them is not hard because they are a hardy type of fish and will rarely get sick, to ensure that they thrive in their environment you should keep them in a school like they are used to. They don’t grow too big as some of them can measure less than 6cm and not more than 10cm. 

14. Cherry barbs 

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To have an easy time with the cherry barb try and find an appropriately sized tank. The cherry is a very timid fish and will hide away even when it is not in danger. Be warned however that you might run into a red cherry barb in your aquarium when you know very well yours has a silver color. The reason for this is because when spawning the males tend to turn bright red. 

15. Platy 

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Platy’s love groups so don’t stress them out by getting only one for your aquarium. 10 gallons of water should suffice; they are livebearers and will decorate your aquarium for only 3 years maximum. Breeding them is not as hard and at four months you could start the process, there are a variety of the platyfish that are tolerant to a range of temperatures, which eliminates the need for a water heater in your fish tank. 

The only remaining work now is for you to pick a suitable fish for your aquarium.

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