Thinking of Buying an Arowana

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Thinking of Buying an Arowana

Hey there guys!

I'm new here. Actually, I need your help. I am planning to buy an Arowana for my birthday. I can't decide which type to buy. Can you recommend a species of Arowana that is perfect for my 90-gallon tank? Appreciate your suggestions...


IvanTortuga's picture
Tank Size


Welcome to Rough fish.  One of the big issues here is that 90-gallons is far too small for most Arowana. Most species can climb upward of 6+ Feet in length and are relatively active fish. As with many SE Asian and Amazonian fish they need moving water with plenty of cover and "friends" most people wouldn't suggest less than a 200+ gallon for any arowana. This all being said I am far more of a fisher than a keeper so others may have more details.

p.s. this is primarily a North American fishing website so you may want to ask around some aquarium websites :) 

Desert Angler
Desert Angler's picture

I think IvanTortuga pretty much covered it. You could start off with a 100 gallon tank, but you would eventually need at least a 200 gallon for an adult arowana. In fact, a lot of people end up building indoor "ponds" when they keep larger fish like arowanas, gars, redtail catfish, etc.. You should check out ; it has forums that should answer a lot of your questions about keep arowanas and other large freshwater fish. 

Susquehannock's picture
Arowana tank

I agree with Ivan; you'd want at least a two hundred gallon, maybe more. 

Some people on here are very knowledgeable about aquariums and aquarium fish, but most of us are fishermen, not aquarists, and most of us know far more about north American fish than Eurasian ones.

MN bowfin angler, cast and blast, and a couple of the other guys who have fished Asia might know more.


Thanks for this info,

Thanks for this info, IvanTortuga. I think I need to reconsider getting an Arowana. I don't have an extra space in our home to put the 200-gallon tank LOL. 

Anyway, thanks for your advice. Appreciate it :)

I 'll be checking out all

I 'll be checking out all your suggestions.

I hope I can also find a good alternative if I won't be able to have an Arowana. Thanks guys!

angry mongrel
angry mongrel's picture
If you can find one

A young juvenile Jardini would be the way to go. Slower growers not typically as aggressive as say the silvers which is another common species to find in stores.
Have kept many over the years at home and in our stores they do tend to be a bit expensive. Just make sure they are feeding well before purchasing if possible. Just my thoughts. 2¢

"It is better to die on your feet than to live on your knees" -Emiliano Zapata

Dan's picture
I kept a wide variety of

I kept a wide variety of native species in aquaria for many years, but the one non-native that I made an exception for was the silver arowana.  I purchased it when it was about 4 inches long and over the course of 3 years it grew to about 13 inches in my 70-gallon tank.  It was a beautiful fish, but also a natural jumper.  Despite my heavy tank hood, it jumped out of the tank and wound up on the floor at least three times and often had bruises on its head from junmping into the tank hood.

The fish was healthy when I gave it back to the pet store because it was too big for the tank.

If I had it to do over again I would not keep an arowana in any tank no matter how big.  An indoor pond with surrounding terrain to accomodate the possiblity of jumping would be great, but that takes up a lot of space.

Some of my favorite natives in the aquarium were logperch, shortnose gar, bullhead, and green sunfish.You can learn a lot about their 'personality' in the aquarium, which is both facsinating and useful when you head out fishing.