IMO you could keep up to a 16" jardini in that 90g tank. My opinion is that the minimum tank size for any arowana is tank length is at least 3 times the aro's length and a tank width at least equal to the aro's length.
You obviously misunderstood him. It probably just killed the 12" oscar. My 4 large arowana could probably eat a 12" oscar once it was cut up into several bite size pieces.
JacobWhitley;4875177; said:you will need 210g+ for a full grown one and plan on not having tank mates someone dropped one off at the fish store i go to and it was a monster if i hat to guess it was close to 28'' the owner told me that it ate a 12" oscar
You obviously misunderstood him. It probably just killed the 12" oscar. My 4 large arowana could probably eat a 12" oscar once it was cut up into several bite size pieces.