Species: Silver Arowana – Osteoglossum Bicirrhosum
AKA: Dragon Fish, God Fish, Monkey Fish (almost always sold as Silver Arowana though.)
Adult size: between 35 inches and 4 feet
Lifespan: I’ve not been able to find a certain life span, most sources say between 10-20 years, will update when better information is available.
Water Temp: 75°F-80°F (24°C-28°C)
Water PH:6.0-7.0 (neutral)
Water Type: Fresh Water
Schooling: If you wish to have more then one it is recommended to get 2 of similar size when they are still small, but their will always be a dominant one. Other sources say if more then one should be schooled 5 to 6, but finding a tank to support that many would be very costly.
Recommended tank:300 Gallons for adults, you may start with a 55 but you will steadily need to upgrade as this fish can get to 3 or 4 feet long.
Good Tank-mates: Any non aggressive fish large enough not to be eaten (not very many of those) Most commonly Discus and Koi.
Bad Tank-Mates: Oscars and other large aggressive Cichlids, any fish that the Arowana might eat, which are most fish small enough to fit in it’s mouth.
Diet: In the wild, ranges from birds, fish, crustaceans , and most anything that fits inside its mouth. In captivity meety foods such as blood worms, insects, frogs, beef heart, and feeding fish is common. When using feeding fish it is always important to pay attention to how the feeding fish look and where they come from, feeding fish raised in poor conditions can carry and transmit diseases to the fish that eat them. Some experts believe that floating pellets and feeding the animal by hand from out of the tank may help prevet dropeye. Pellets will be the cheapest way to feed this fish while keeping a balanced diet. I would urge extreme caution if you choose to feed this animal by hand as its tounge has teeth that it uses to catch its prey. Some uncomfortable bites may occur.
Habitat: The Arowana is a top swimming fish, since naturally it often gets food from above the surface. A large tank with open space is needed because the Arowana is a very active swimmer and can produce a substantial amount of waste. Often you will need to siphon waste and other debris from tank as well as doing a partial (30% to 40%) water changes once or twice a week to keep the water clean. Live plants will help to control the water toxins since this fish can be very sensitive.
Pros: This is a beautiful fish, that you can keep for a long time. These fish are very active and amazing to watch.
Cautions: (I’m not saying this is a bad fish to own, just that you should be aware this fish will live a long time) This is a fish for an experienced aquarists, they are large, require very specific temperatures and PH. These fish can be very aggressive with each other, and may very well eat any other kinds of fish in a tank. These fish will require a very large tank that most aquarists cannot provide.
Summary: Silver Arowanas are beautiful fish. These top swimmers are elegant and majestic. Arowanas have large scales and brilliant color. Their long slender bodies are topped with a thin dorsal and anal fin that runs the majority of its body. Off of its draw bridge mouth are also some small barbels. Originating from prehistoric times these fish have changed little from their ancestors. Natively coming form the Amazon basin the, but with relatives from Australia, Asia, and Africa. This is a fish intended for more experienced aquarists as it can grow rather large and requires very specific conditions.