Silver Arowana: Full Care Guide, Tank Size, Diet

The Silver Arowana, also known as the Dragon Fish or Monkey Fish. It is a freshwater fish native to South America. This fish is pretty popular for its hunting ability and large size.

This fish is not generally recommended for beginners. This fish can make a good addition to an experienced aquarist tank.

Care Level:Difficult.
Color From:Silver.
Lifespan:10-15 years.
Size:Up to 3 feet.
Family: OsteoglossidaeTank Size:250 gallons tank Set-Up:Freshwater: rocks, and plants

Overview of Silver Arowana

It is native to South America. You can find this fish dwelling in the Amazon River Basin.

This freshwater Arowana fish is also known as Dragon fish and Monkey fish and is sometimes misspelled as Arawana, Arahuana, Arrowanna, and Arijuana fish.

These fishes are popular for their unusual appearance. They are pretty powerful swimmers. Being predators these fish can get incredibly aggressive sometimes.

This predator fish can grow up to 4 feet in size and 6 kg in weight. This fish can live up to 10-15 years when raised in captivity.

If you ever encounter them in the wild, you will be amassed by their hunting style. They can also survive a short period out of the water, by using their swim bladder.

In general, Arowanas are restricted for import. But you can find the Silver Arowanas available in the pet shop. These Silver Arowanas are the least restricted ones.

Their huge size and long lifespan make them fish and only experienced aquarists should consider having these fish.

The appearance of Silver Arowanas

Silver Arowana
Silver Arowana

They are silver-colored and grow up to 4 feet in the wild. However, in a captive situation, you should expect them to grow around up to 3 feet.

The average Arowana will weigh around 4.6 kg(10lb) when fully matured. The Silver Arowana is a much sought-after fish, normally the crowning jewel in any collection.

Its most distinguishing characteristic is its jawline. It is referred to as a ‘drawbridge’, their mouth is nearly vertical.

You will see they have large pearl-like silver scales across their entire body. As juveniles, these scales can have a blueish tint to them.

Their long sleek body appears flat when viewed from the side and you will notice their dorsal is almost fused with the caudal fin.

Females are generally thicker, with males being more slender and having a larger anal fin.

They are small around 4 inches after their egg sack has been consumed but grow fast.

During their first year, they will grow 2 inches every month. Make sure they are well-fed and have plenty of space in the aquarium.

General Behavior

Despite being large fish they can be surprisingly skittish. Arowanas will get scared by sudden movements, or turn the lights on.

You should place your tank in a low-foot traffic area. This prevents them from getting startled each time they walk past the aquarium.

This fish spends most of its time swimming close to the surface of the water. However, it should be noted that Silver Arowana are notorious jumpers.

It’s been claimed that they can jump up to 3 meters high. They are most likely to jump when they are new to an aquarium or are placed into a small tank. This is why You only place Arowanas in a suitably sized tank.

Tank Requirments Of Silver Arowana

These fishes are large fish and strong swimmers. The most recommended tank at least should be 250 gallons in capacity.

Juveniles can be raised in a small tank of 60 gallons, but quickly need to move out into a larger tank.

If they are not moved into a larger tank, you will notice body deformation and reduce the lifespan of your Silver Arowana.

They are notorious jumpers, so you will need a very heavy cover to stop them from jumping out of the tank.

Aquarium Substrate for Silver Arowana

The substrate should consist of small gravel. The tank should be sparingly planted. And have lots of open space for them to move around.

Decoration should be done with driftwood, rockwork, and sturdy plants. Avoid planting weak roots plant in your tank.

Tank Conditions

You should aim to keep the water temperature anywhere from 75-82oF. Meanwhile, pH levels should be 6.5 – 7.5, and water should be soft to moderately hard.

They are particularly susceptible to poor water quality, so strong water filtration is required. In addition to weekly water changes of 25%.

Tank Mates For Silver Arowana

Let’s start by looking at them as juveniles. When they are young they are particularly susceptible to bullying by more aggressive breeds. So keep this in mind when placing them in the aquarium.

They can be kept together and raised. It is recommended that you keep 6 or more Silver Arowanas together. This prevents the smaller ones from being bullied by the larger Arowanas.

When assessing fish to keep with your Arowana, keep this in mind.

  • You want to find peaceful yet slightly aggressive fish.
  • Fish should also be large enough that they can not be eaten by the Arowanas.
  • You should introduce the Arowanas to the tank.
  • Always have a backup plan if something goes wrong in your tank.

This is a list of fish that you can add to your aquarium:

  • Green Terrors.
  • Oscars
  • Knifefish.
  • Large Plecostomus.
  • Parrot Cichlid.
  • Catfish.

Keeping Adult Arowanas Together

If you plan to keep more than one or two Arowanas together, Do so cautiously. They generally do not get along well together.

If you are insistent, you should keep at least 6 of them together and keep them in a large natural pond.

Diet and Feeding for Silver Arowanas

They are generally considered to be carnivores. In the wild, they will consume a wide variety of prey including small fish, snails, and large insects.

Their food choice is normally small fish and crustaceans. Their preference is a meat-based diet, which can include: earthworms, crab, crickets, shrimp, krill, and crustaceans.

You can also give them feeder fish. If you want to use feeder fish, I would recommend you breed your own.

If you buy feeder fish from a pet shop or online you can not ensure that they are healthy. It may bring your aquarium to expose to disease.

Keep in mind that juvenile Arowanas are fussy eaters. You should only feed them fresh/live food at this stage in their life.

Hey, I am Shuvradeb Biswas a content writer. Fishkeeping is my hobby. There are many problems I faced during my first fishkeeping. So, I made the blog to help new fishkeepers.

Leave a Comment