10 Perfect Freshwater Fish for Your Aquarium

Having a freshwater fish aquarium in your household can be helpful. The presence of fish in your home can help to reduce stress and lower your blood pressure. They are also a sight for sore eyes because of their colorful and overall eye-catching physical attributes.

Freshwater fish exist in all shapes and sizes, but not all can adapt to the freshwater environment of our aquariums at home. It can be confusing to decide what types of fish are suitable. In this article, we will try to assist you in deciding what the best choice to buy.

1- Guppy

Guppy fish - freshwater fish

The most commonly found freshwater fish in aquariums and shops is the Guppy fish. The reason that it is highly preferred is because of the minimal maintenance it requires. They have the tendency to go over a week without food and survive with ease.

The male and female of the guppy are often easily distinguishable, with the male being more vibrant and being the owner of a broader anal fin. This information can be helpful if you want to avoid breeding.

You can either purchase all male or all female unless you mean to start a business in which case you may keep both male and female in the same vicinity, and you will soon have an ample number of guppy babies.

2- Angelfish

angelfish - freshwater fish

Angelfish are a lot more work to keep as pets. You need to affirm that the pH levels and temperature are according to what they need. Angelfish require a higher level of nurture than guppies. Being omnivorous, they require both meat and plant forms of diet.

You should also avoid keeping them in an overcrowded space or with fast-swimming fish. It can cause angelfish to get nervous. They are also prone to bacterial infections, which makes a clean tank with quality freshwater, a necessity.

Angelfish are an aggressive species and survive better in like a community. However, angelfish are small and beautiful to look at, which is what usually drives the buyers.

3- Corydoras Catfish

Corydoras - freshwater fish

These freshwater fish are primarily found in fish tanks, mainly because they are easy to take care of. Corydoras Catfish are peaceful and calm, being bottom dwellers and can effortlessly live by themselves. Although, they thrive better in community situations.

They can also be responsible for keeping your tank spick and span because of their love for a vegetative matter like algae that has the inclination to grow at the bottom of your tanks, making them look quite filthy. Their food intake includes insect larvae, blood worms, and vegetable flakes.

4- Goldfish

goldfish - freshwater fish

Goldfish are the most mainstream species and the easiest freshwater fish to keep alive. Don’t be fooled by their size, though, they require a substantial amount of space, mainly because they excrete much more waste than other fish. Even so, they are the hardiest of fish, living up to ten years long, surviving on small amounts of food.

You can feed a goldfish pellets or skinned peas. Being omnivorous, they will also easily consume bloodworm or brine shrimp. They may be messy eaters but treat the water with a de-chlorinator regularly, and you should be fine.

5- Discus

discus fish - freshwater fish

Discus is belonging to the Cichlids genus, these fishes are advised not to be kept by beginners, being high maintenance. They are graceful but can grow to be quite huge in size and then demand a tank that can hold at least 25 gallons of water. They can survive with other fish if they’re not aggressive and can stay healthy in the same freshwater conditions as Discus.

Also, they are carnivorous and best feed on bloodworms, blackworms, or white-worms. People who do like to keep Discus fish are usually enthusiasts, enjoying ownership of rare fish. Discus fish are found in unique colors and distinctive patterns and are the fish form of the “trophy wife.”

6- Bloodfin Tetras

Bloodfin Glass Tetra - freshwater fish

Like the goldfish, Bloodfin Tetras species has also proven to be quite robust. They can live up to ten years, depending on the maintenance, of course. Being relatively active, they require sizeable aquariums to move around as much as possible.

Keeping them means you’ll add a fish that is beautiful and easily retained in your collection. They sport silver bodies with fiery red fins. They’re communal fish and are best kept with 6 – 8 of the same species. Their diet includes tubifex worms, silkworms, or brine shrimp. They can also survive quite easily on classical flake food.

7- Black Molly

Black Molly - freshwater fish

This freshwater fish is an acquired taste, mainly because of its black color. However, the people who do keep them are keeping a low sustention fish that can easily abide by the help of the community. Black Molly are easily adapt to freshwater aquariums and are shifted to different aquariums, effortlessly. Their intake is both plants and meat because of their omnivorous nature, once or twice a day.

8- Killifish


Killifish come in 700 breeds to fit any tank situation. They are hardy and non-aggressive freshwater fish that ironically enjoy a carnivorous diet of insect larvae, worms, and crustaceans.

Killifish can be very easy to breed under the right conditions. There are annual and non-annual breeders. The annual breeders lay their eggs in temporary bodies of water that are required to dry up and refill. This refill causes the eggs to hatch. Killifish come in a range of bright colors and patterns.

9- Plecostomus


They are a different breed of catfish. Plecostomus are most likely to have heavy armored bodies with a puckered mouth. Just like the Coryfish, they feed on algae growing on the surface of your tank, keeping your tank relatively clean.

Although this freshwater fish is hard to breed, it can survive for up to 20 years if heeded for the right way. They’re an omnivorous species that feed on the likes of crustaceans and algae/aquatic plants.

10- Cherry Barb

Female Cherry

This last freshwater fish will take time to adapt to your freshwater tank, and because of that, they have the ability to get highly used to their tanks and can manage to survive in changing water temperatures. The fish’s vibrant colors make them a staple in aquariums.

Cherry Barbs are active, and their antics can be entertaining to watch. They take time to get used to the diet you give them, but once they do, they will be eating with ease.

Freshwater fish can be a breath of fresh air once you both get used to each other, and a lot of them don’t even require much-taking care.

You May Also Like:

Setting Up A Freshwater Tropical Fish Tank
Top 9 Small Freshwater Fish Types to Keep as Pets
Guide to Building Your First Fish Tank

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