for an arowana you need the width to be the length of the arowana and the length to be double the length of the arowana, at a minimum.quote]
Almost well said, Poo. This is not only a statement that sould be acknowledged by Arowana keepers, yet a statement that should be acknowedged by all, and for all fishes. All fishes "need" "at least" an inch, either end, in terms of width. And the length of the aquarium should be "at least" triple the length of the "adult specimen".
Not that i care at all for Flower-horn, but both your Oscar and Fh "deserve" 75g each.
I'm a sucker for allowing them their permanent home from an inch long.