Silver Arowana

The average Silver Arowana lifespan in captivity is somewhere in the 10 to 15-year range. Getting one of these fish is a serious long term commitment.

The typical size of a Silver Arowana in captivity is almost 3 feet long when fully grown! These are massive fish.

In the wild, they’re known to get even larger. Specimens that are nearly 4 feet long have been recorded.

The minimum tank size for a Silver Arowana should be 250 gallons for an adult. , these fish require very large tanks to stay healthy.

Juveniles can do fine in tanks as small as 60 gallons. However, they have a very rapid growth rate. They can grow up to 2 inches a month during their first year alone!

Silver Arowanas can be found in warm streams and tributaries throughout South America. Interestingly enough, they do fine living in both blackwater and whitewater environments.

While you don’t have to go so far as to replicate murkiness, you will need to pay attention to pH balance, temperature, and hardness.

The Amazon River Basin is quite warm. Waters are also teeming with life, which affects overall acidity.

Silver Arowanas are flexible enough to handle some fluctuation, but you need to make sure that measurements always fall within the following acceptable ranges.

• Water temperature: 75°F to 82°F
• pH levels: 5.0 to 7.5 (aim for the middle)
• Water hardness: 1 to 8 dKH