Aquarium Fish – Silver Arowana

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The Silver Arowana (Osteoglossum Bicirrhosum) is the least expensive, most widely distributed and easiest species of Arowana to obtain. This species of Arowana is ideal for fish keepers who would like to try their hand at rearing this magnificent species without spending too much money. That being said, these are not beginner’s fish.

Silver Arowanas are covered with large silver scales and have an elongated body. The dorsal and anal fins are set far back and almost merge into the tail fin. They swim about near the surface, and have an upturned jaw that lets them snatch food floating on the water. Silver Arowanas are very popular due to the elegance of their swimming patterns.

Indigenous to the flood plains of the Amazon River Basin in South America, the Arowana can reach an intimidating 46 inches in the wild, and is often too much for all but the advanced freshwater aquarist to manage. At full size an adult should have a tank of 250 gallons. Silver Arowanas need the best of water conditions. Ammonia and nitrites must be kept at zero, and the water must be clean and clear. A 25-30 percent partial water change weekly is strongly recommended. The aquarium must be fitted with a tight, heavy cover because the Arowana will jump. In the wild, they are known to leap several feet out of the water to catch insects and other prey.

A carnivore, the Silver Arowana will eat frozen brine shrimp, live black worms, live crickets, floating pellets, Arowana sticks and live fish such as guppies or goldfish. They prefer to take food from the surface. It is important to keep the food items diversified as a nutritious, complete diet will enhance their colors and ensure good health.

Knifefish, large Plecostomus, Catfish, and Ornate Bichirs make good tank mates for the Silver Arowana.

Minimum Tank Size: 250 gallons  Care Level: Moderate  Temperament: Semi-aggressive (Predator) Water Conditions: 75-82° F, KH 1-8, pH 6.0-7.0  Max. Size: 3′ 10″  Color Form: Black, White (Silver)  Diet: Carnivore 

Origin: Amazon River Basin, South America

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