My answer will be speculative. I find silver arowana personalities (prior histories, health, etc.) vary enough that the gender behavioral differences (other than pertaining to procreation) seem to mostly wash out. Some trends seem to hold, like in a community of several (4+) specimen, the territorial aggression seems to be mostly intra-gender, not so much inter-gender although the females can sometimes be cranky toward the males too but not vice versa. The appetite of the mature females growing eggs in their body seems to exceed the appetite of the males, even though the females appear a bit smaller... but I may not have enough data yet to claim the size disparity.
For juveniles in separate tanks, which is your case, it'd be hard for me to say much, because I see a variability in arowana temperament, energy, behavior. I think I know exceedingly little yet to be helpful. Rarely do I get chances to enjoy the fruit of our labors and sit down and observe the fish a good while.
For juveniles in separate tanks, which is your case, it'd be hard for me to say much, because I see a variability in arowana temperament, energy, behavior. I think I know exceedingly little yet to be helpful. Rarely do I get chances to enjoy the fruit of our labors and sit down and observe the fish a good while.