Best 16 Freshwater Aquarium Sharks for Tanks

If you’re looking for freshwater aquarium sharks, you’ve come to the right article! In this article, we’ll be discussing the different types of freshwater aquarium sharks and how they can be beneficial to your tank. We’ll also be providing a list of the 16 best freshwater aquarium sharks for tanks.

So whether you’re thinking of adding a shark to your tank as a decorative piece or as a key fish species, read on to learn more!

What is a Freshwater Aquarium Shark?

Freshwater aquarium sharks are a popular choice among aquarium enthusiasts. Some of the reasons they are so popular are their size (many aquarium sharks can grow quite large), the fact they can be kept as pets, and their ability to add variety and interest to the ecosystem of a freshwater tank.

There are many different types of freshwater aquarium sharks available, so do your research to make the best choice for your tank. Make sure to consider the size, feeding requirements, temperament, and activity level of the shark you choose before making your purchase.

16 Best Freshwater Aquarium Sharks

Freshwater aquarium sharks are a popular choice for aquariums due to their hardiness and interesting personalities. When it comes to the best freshwater aquarium sharks for tanks, there are a variety of options available.

Make sure to do your research and select the shark species that is the best fit for your tank size and requirements.

1. Bala Shark

bala freshwater shark

Bala sharks are one of the most popular aquarium fish and for good reason! They come in a variety of colors, including white, black, and yellow which makes them very eye-catching. In addition to being great swimmers, they are known to be active feeders that eat a variety of fish species.

So if you’re looking for an aquarium shark that will look amazing in your home aquarium as well as provide years of enjoyment, then a bala shark is definitely the fish for you! Bala sharks prefer temperatures around 77 degrees at all times. The pH balance should be between 6.5 and 8.

Breeding bala sharks is a relatively easy process and they can be bred in both community tanks and reef tanks. It’s important to remember that while they are not aggressive fish, bala sharks should never be mixed with other species of fish unless you are absolutely certain that the others won’t harm or harass the bala shark.

Bala sharks can be bred in home aquariums using a variety of methods. The most popular method is to use an external fertilization service and release the fry into larger tanks. Bala sharks also can be spawned in captivity by releasing eggs and sperm into the water column.

There are many different Bala sharks available from the pet trade. Some of the most popular types include the Indo-Pacific Bala shark (Etmopterus peronii), Blacktip reef shark (Carcharhinus melanopterus), and Spinner shark (Cephaloscyllium havnesi). It is important to research which type of bala shark you wish to purchase or breed as they all have their own specific requirements for captivity.

  • Size: 10 to 13 inches
  • Minimum Tank Size: At least 120 gallons
  • Beginner Friendly: Yes

2. Rainbow Shark

rainbow freshwater shark

Rainbow shark is a great aquarium shark for beginner fishkeepers. They are usually gentle and peaceful, making them a good choice for first-time tank inhabitants. Rainbow sharks can be found in warm tropical waters and are therefore popular aquarium fish.

They are adaptable and can tolerate both salt water and freshwater environments – making them one of the most versatile sharks on the market! They have a lifespan of up to 20 years.

  • Size: 6 inches
  • Minimum Tank Size: At least 55 gallons
  • Beginner Friendly: Yes

3. Siamese Algae Eater

siamese algae eater freshwater shark

Siamese algae eaters are one of the most popular freshwater aquarium fish. They’re easy to care for and love feeding on algae. This shark is also one of the best freshwater sharks for feeding as it loves to eat anything that grows in water, including plants!

Even though these sharks can be kept in small tanks, they make great additions to larger aquariums too. They are very peaceful fish and make excellent family pets.

  • Size: 6 inches long
  • Minimum Tank Size: At least 25 gallons
  • Beginner Friendly: Yes

4. Iridescent Shark

iridescent freshwater shark

Iridescent sharks are freshwater sharks that have beautiful markings all over their body. They can grow up to 4 feet long, making them one of the larger freshwater sharks available. Their natural habitat is tropical rivers and streams, so they require minimal care – just feed them once a day and give them some space.

The silver-colored scales of iridescent sharks glimmer when they are exposed to light. Only a pond should be used to house this magnificent but gigantic catfish. Monster fish fans all over the globe prize it. Iridescent Sharks will eat anything they see, so can only be kept with other monster fish.

If you’re looking for an aquarium shark that has a bit more character and looks different from the usual fish species, iridescent sharks are perfect for you!

  • Size: 4 feet long
  • Minimum Tank Size: At least 400 gallons
  • Beginner Friendly: No

5. Albino Shark

albino freshwater shark

Albino sharks are one of the most interesting freshwater fish species available. They are gentle fish that make excellent tank mates for other types of fish and can live up to 10 years in captivity. Its care requirements are the same as a typical colored Rainbow Shark.

Something need to be concern of for Albino sharks are the pH levels. Agressive behavior can be triggered by a sudden pH shift.

As they are a filter-feeder, they require regular water changes to keep them healthy and happy. Albino sharks come in a variety of beautiful colors including black, white, yellowish-green, light browns and reds.

This fish is very solitary and does not enjoy the company of other fish. It is highly territorial both to its own kind and others that look like it. You cannot get away with keeping an Albino and a Rainbow Shark together!

Due to their rarity and striking coloration, albino sharks are one of the most popular aquarium shark species on the market today!

  • Size: 6 inches long
  • Minimum Tank Size: At least 55 gallons
  • Beginner Friendly: Yes

6. Roseline Shark

roseline freshwater shark

Looking for a freshwater aquarium shark that is safe and easy to care for? Roseline sharks should be at the top of your list! These gentle fish are perfect for beginner fish keepers as they don’t require a lot of tank space, aren’t aggressive, and can eat smaller fish and invertebrates. Plus, their beautiful colors will add some eye-catching personality to your tank.

The Denison Barb is another name for the Roseline shark. The red, black, and yellow lateral lines on this Barb fish species are distinctive.

A Roseline’s tank should be heavily planted and secured with a hood.

  • Size: 6 inches long
  • Minimum Tank Size: At least 55 gallons
  • Beginner Friendly: Yes

7. Siamese Flying Fox

siamese flying fox freshwater shark

Siamese Flying Foxes are a great aquarium shark choice because of their large size and playful nature. They are also known for being very social animals, getting along well with other fish in the tank. The black mark on a Flying Fox’s dorsal fin can help you identify it. This black mark is not present on the Siamese Algae Eater.

Siamese Flying Foxes can be difficult to keep in captivity. This is because they require a large space and plenty of hiding spots, as well as regular access to fresh water. Make sure to provide them with plenty of space and vary their diet to keep them entertained. Note that they can grow quite large, so be prepared to keep an eye on your tank size!

  • Size: 6 inches long
  • Minimum Tank Size: At least 55 gallons
  • Beginner Friendly: Yes

8. Golden Shark

golden freshwater shark

The Golden Shark is a freshwater aquarium shark that is widely considered one of the best in the business. They are active and playful fish, which makes them perfect for an active home aquarium. They have low requirements when it comes to water conditions and feeding – making them a great option for those on a tight budget.

This shark has a long body and resembles a bullet, despite the fact that most Barbs are short. It’s one of the biggest Barbs you can buy, measuring 20 inches long. This fish must have a tank of at least 250 gallons if you intend to keep it indoors. In ponds, it fares better otherwise.

Furthermore, they can reach up to 1 metre in length, so be sure you get your hands on a healthy specimen!

  • Size: 20 inches long
  • Minimum Tank Size: At least 250 gallons
  • Beginner Friendly: No

9. Paroon Shark

paroon freshwater shark

Pet sharks are not often seen with paroons. Even the most veteran keepers find them a challenge. Iridescent Sharks are often sold as Paroon Sharks. The Paroon is somewhat lighter in hue and lacks obvious lateral lines, making it distinguishable from the other fish. On a juvenile Iridescent Shark, the lateral lines are plain to see.

Paroon Sharks can only be raised in a tank during the juvenile stage. They will grow to lengths of up to 5 feet in an outdoor pond.

Paroon sharks are one of the most common types of sharks in freshwater aquariums. They are social animals and will readily accept other fish in their tank. They are also good algae eaters, so keep an eye on the quality of your substrate when adding them to your tank.

With care, these fish makes great additions to any aquarium as they provide hours of entertainment for onlookers!

  • Size: 5 feet long
  • Minimum Tank Size: Pond
  • Beginner Friendly: No

10. Redtail Shark

redtail freshwater shark

Redtail sharks are one of the most commonly kept aquarium fish and can be found in many fish tanks across the world. They make great beginner sharks as they are quite gentle, tolerate a wide range of water conditions well, and are capable of eating large prey items.

These sharks belong to the pelagic shark category which means that they live in open ocean habitats.

If you’re keeping Redtail Sharks in a community, a bigger tank is required; a 50 gallon tank will suffice. It’s preferable to choose a bigger tank for this active fish. Glass partitions or driftwood may then be used to divide the tank into areas, which may help soften its bad attitude.

As such, redtail sharks are some of the best options for those who want to get a feel for what shark fishing is like since these species tend to feed on larger animals that inhabit marine waters.

  • Size: 6 inches long
  • Minimum Tank Size: At least 50 gallons
  • Beginner Friendly: Yes

11. Harlequin Shark

harlequin shark

Harlequin sharks are a schooling species that like to be in close proximity of other sharks. They make great aquarium fish as they are easy to care for, have good temperament and tolerate smaller tank sizes. Eye spots and a distinctive black band on its underside make it easy to identify.

Feeding options include live and frozen food, but harlequin shark are also known to scavenge when necessary.

The Harlequin freshwater shark is the one that looks the most like a shark of all the freshwater sharks. It resembles a marine Cat Shark due to its brown, yellow, and black coloration. In highly acidic conditions, Harlequin Sharks blend in with the substrate.

In reality, it favors a pH of about 6.0 in an acidic environment. To mimic their natural habitat, add peat moss and driftwood to your substrate. Lowering the pH in your tank is optional.

  • Size: 8 inches long
  • Minimum Tank Size: At least 40 gallons
  • Beginner Friendly: No

12. Colombian Shark

colombian shark

The Colombian shark is an aquarium shark that is gentle, easy to care for, and possess some of the best coloration in the genus. It makes a great first choice for aquariums as it doesn’t require a lot of maintenance and can thrive in large tanks. Additionally, they are known to be quite active predators and make great additions to a marine aquarium if you’re looking for an all-round shark.

A juvenile Colombian Shark may live in a standard freshwater aquarium when it matures, but it will need a brackish aquarium. When a juvenile hits maturity, transfer it to a tank with a salinity of 15 to 20 dGH. Start it off with a hardness of about 5 to 10 dGH.

This shark will need to get re-acclimated to its new brackish water habitat. When you do, however, be sure to handle it with care. Its dorsal fin contains a sting.

Colombian Sharks eat anything that reaches the bottom of a tank, including bottom dwelling fish and invertebrates.

  • Size: 10 inches long
  • Minimum Tank Size: At least 75 gallons
  • Beginner Friendly: No

13. Black Sharkminnow

Black Sharkminnow

When it comes to keeping aquarium fish, black sharkminnow are one of the best options on the market. This shark can grow up to 35 inches long and is a calm fish. Its size should not scare you. A detritivore and algae eater, this fish is a suitable candidate. For an outdoor pond, it’s one of the most effective algae cleaners. It consumes both algae and dead plant matter.

As long as you have enough space for these active fish, black sharkminnow will provide you with years of enjoyment. It is important to note that they do like water movement, so make sure your tank has plenty of places for them to swim around!

Black Sharkminnows have a 20 year lifespan, so adding one to your aquarium or pond is a major commitment.

  • Size: 35 inches long
  • Minimum Tank Size: Pond
  • Beginner Friendly: No

14. Chinese High Fin Banded Shark

Chinese High Fin Banded Shark

In China’s Yangtze River, this catfish is endangered, although it may be kept in home aquariums and ponds. Instead of being taken from their native habitat, the majority of companion species are born and reared in captivity.

Due to their active nature and demanding feeding habits, they can quickly become fin-nippers if not provided with the right food source.

Chinese High Fin Banded Sharks grow up to 4 feet long as they mature! The dorsal fin will seem to be much smaller than it did while the fish was still a juvenile when it reaches its full size.

It has a high, triangular dorsal fin that doesn’t grow with the rest of its body.

This shark should be kept in a pond rather than in aquarium.

If you do keep it in a tank, it will need to be at least 300 gallons in size.

  • Size: 4 feet long
  • Minimum Tank Size: At least 300 gallons
  • Beginner Friendly: No

15. Apollo Shark

Apollo Shark

Apollo sharks are a great choice for beginner aquarists. They are easy to keep and care for, making them the perfect aquarium fish for anyone just getting started. Additionally, they make a great addition to smaller tanks – ideal for people with limited space. This shark has moderate aggression levels, making it an excellent choice for any aquarium enthusiast.

The Apollo Shark is a very timid fish that resembles a shark. When placed in a group of seven or more, it becomes much less skittish, and it gains a lot of confidence.

Because Apollos grow up to 8 inches long, a 125 gallon tank will be required for their school.

Apollo Sharks are in constant motion and want to explore all levels of the tank. At the surface, they feed on slow sinking fish flakes and live invertebrates. Their attractive colors and patterns make them an exciting addition to any tank!

  • Size: 8 inches long
  • Tank Size: At least 125 gallons
  • Beginner Friendly: No

16. Violet Blushing Shark

Violet Blushing Shark

Freshwater sharks have always been a popular aquarium fish, and the violet blushing shark is no exception. The term “Violet Blushing Shark” stems from the fact that the fish has spots of brilliant pink on its cheeks. It is not a leucistic fish, and its pink and white color is completely natural!

One of the most gorgeous freshwater sharks is Violet Blushing Sharks. It’s extremely easy to see because of its color and size. To stand out, it doesn’t need a lot of embellishment.

The fish can grow up to a foot long in a tank of at least 200 gallons.

Despite its beauty, this shark’s aggressive temperament and complex care requirements make it difficult to find for sale. They may be maintained at 68°F or higher in warm temperate tanks or ponds.

  • Size: 12 inches long
  • Minimum Tank Size: At least 200 gallons
  • Beginner Friendly: No

How to Set Up a Shark Aquarium

Adding a shark to your freshwater aquarium is a big decision – but it’s one that can be tremendously rewarding. Before making the leap, be sure to do your research and read through our tips on setting up a shark aquarium.

Tank Size and Environment

A tank size for an aquatic shark should be based on their size as well as the environment you desire. When choosing the right tank size, it is important to take into account both the fish’s and shark’s natural habitat. You can also include live plants and rocks in your aquarium to give your shark a more natural home-like feel.

It is also necessary to feed them a balanced diet that consists of meat, fish flakes, vegetables etcetera. Additionally make sure the water quality is good; keep it clean and cool with appropriate lighting conditions too!

Filtration and Water Requirements

A freshwater aquarium shark needs a lot of water and filtration – make sure you have the right equipment. Make sure the tank is large enough for them to swim around in, avoid getting stressed out, and that the water parameters are kept at a stable pH level and temperature.


Choosing the right substrate for your aquarium is essential. Not only does it play a major role in making sure the tank looks good and healthy, but also can affect the fish’s health in various ways. There are many substrates available on the market, each suitable for different tanks and with unique properties.

Make sure to select one that is of good quality and durable – damage caused by poor substrate choice could lead to contamination of water or even loss of fish life. Add enough substrate to cover the bottom and sides of your tank as well as an extra 10-15% on top just in case; this will help give your aquarium a solid foundation from which you can add aquatic plants and decorations later on.

How and What to Feed Your Freshwater Shark

If you’re thinking of adding a freshwater shark to your tank, now is the time to do it! freshwater sharks are one of the most popular aquarium fish today, and for good reason – they are beautiful, active, and easy to care for.

While there are many different types of freshwater shark food available on the market, it’s important to choose the right one for your shark and tank. Some common choices include frozen bloodworm, krill, and brine shrimp.

Make sure to feed your shark regularly and adjust the aquarium water parameters as needed to ensure your shark stays healthy and happy.

How Often Should You Feed Your Shark?

As sharks are carnivores, they require food to survive. To provide your shark with the right nutrition, feed them 2-3 times a day depending on their size and appetite. Make sure the food is fresh and frozen foods should not be fed as these can contain toxins. Feeding too much will lead to obesity and health problems in the long run so make sure you’re feeding your shark only what it needs!

When choosing what to feed your shark, make sure that the food is high quality, low calorie (because sharks aren’t dense like other fish), safe for both fish and humans. There are many types of good Shark Food available on the market today so don’t worry about finding something that’s perfect for him or her!

What’s the Best Diet For Freshwater Sharks?

Freshwater sharks are omnivores and as such, require a balanced diet that includes both fresh and healthy food items. It is important to note that overfeeding them will result in obesity, health problems, and eventually death.

If feeding your shark live seafood is unavoidable, make sure it is freshly caught and alive before feeding it to them. Avoid feeding them high-fat or high-sugar foods as these will not provide the necessary nutrients for their growth and development.

Can Freshwater Aquarium Sharks Coexist with Freshwater Aquarium Shrimp?

Freshwater shrimp in aquariums can coexist with freshwater aquarium sharks if certain conditions are met. It is crucial to choose shark species that are peaceful and not prone to aggression. Additionally, providing adequate hiding places and spaces for both the shrimp and sharks will help minimize conflicts. Regular monitoring of their interactions can ensure a harmonious environment for both species.


If you’re thinking of adding a freshwater aquarium shark to your tank, now is the perfect time! These animals require water changes regularly, so make sure your tank is large enough. Additionally, freshwater aquarium sharks are known for their amazing personalities and ability to interact with humans.

They make great beginner fishkeepers because they’re so easy to care for.

Are there freshwater sharks for aquariums?

Freshwater sharks can be kept in aquariums provided they are the right type and size. There are a few freshwater sharks that make great aquarium fish – Bala, Rainbow or Harlequin Shark. All of these sharks are relatively easy to care for and need plenty of space to move around as they get stressed out in captivity. Providing them with hiding places will help them feel more at home in their new surroundings.

Are freshwater aquarium sharks really sharks?

Freshwater aquarium sharks are not actually sharks – and as such, do not require a license from the Marine Conservation Society. They are classified as Fish Family: Carcharhiniformes, which includes shark species like great white and tiger sharks.

The biggest concern would be if you have one freshwater aquarium shark that is larger than 3 feet in length – in this case, you would need to contact your local authority for licensing purposes. The other concern with freshwater aquarium sharks is that they can potentially harm other fish by eating them; make sure to monitor your pet’s diet closely!

What fish can you put in a tank with sharks?

Aquarium sharks and other fish can get along just fine as long as they are both kept in a well-maintained tank. If the shark is stressed or feels threatened, it might attack the other fish in the tank.

Do not put any aggressive fish into an aquarium with sharks – these fishes may end up fighting each other!

Make sure that you provide enough space for your shark to swim around and hunt its food; a tank size of at least 60 gallons (227 liters) should be sufficient. Lastly, make sure that all of your fish have access to water at all times; if onefish goes missing, chances are high that the shark will fins it down!

What size tank do you need for a shark?

In order to keep a shark as a pet, it is important to have the correct tank size and make sure the water conditions are perfect. A minimum tank size of 100 gallons is required but 200 gallons or more will be ideal. While some sharks do better in acidic water, others prefer freshwater aquariums with regular water changes.

You also need to take into account the dimensions of your tank – height, width and depth- as these can vary depending on what kind of shark you’re keeping. It’s also important to ensure that there are enough hiding places for your shark so it feels secure and safe in its home environment.

Which shark is best for aquarium?

Freshwater aquarium sharks can be a great addition to any tank – but which shark is the best for your tank size and type? To help make this decision, some of the best freshwater aquarium sharks include the Bala, Rainbow or Harlequin Sharks.

Each of these sharks are suitable for both small and large tanks. However, remember that the size of the shark also affects how often it needs to be fed; smaller ones need food more than larger sharks. Make sure you choose a compatible shark with your tank’s size and type before adding it to your fishtank!


Freshwater aquarium sharks are one of the most popular fish species in the aquarium community. In this blog, we have compiled a list of the 16 best freshwater aquarium sharks for tanks. From the shark species that are the easiest to care for to the sharks that are known for their aggressive temperament, you will be able to find the perfect shark for your tank in no time. So, if you’re looking to add a shark to your aquarium, be sure to check out our blog!

Hi, I'm Millie a passionate fish enthusiast and blogger. I loves learning about all kinds of aquatic creatures, from tropical fish to stingrays.

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