depends on the size of the arowana but it sounds like a bad idea the one i had use to try and eat my gar that was his size and would end up swimming around the tank holding him in his mouth depends on the aro to some get purdy mean
how big is your bass? usually the arowana should be 1/3 bigger than the bass, safer but doesn't secure that the aro won't be bullied~cowboy8411;3298253; said:that size might eat the bass at first but if he dont then yeah that would be a sweet pair