* Larger and more muscular than females
* Have a broader and more pronounced head
* Their dorsal (back) fin is usually larger than the anal fin
* The anal fin is often rounded in males, while in females it is more pointed
* The color of the dorsal and anal fin is usually brighter in males
* Males may also have a broader and more pronounced jawline
* The male arowana's anal fin rays may be longer and thicker than the female's.
* Male arowanas may have broader, more muscular gill plates.
* Males may be more brightly colored than females.
* Male arowanas may be more aggressive than females.
Female Arowana Fish
* Smaller and more slender than males
* Have a narrower and less pronounced head
* Their dorsal fin is usually smaller than the anal fin
* The anal fin is often more pointed in females, while in males it is more rounded
* The color of the dorsal and anal fin is usually less bright in females
* Females may have a narrower and less pronounced jawline
* The female's anal fin rays are typically shorter and thinner.
* Female arowanas may have smaller, less muscular gill plates.
* Females may be less brightly colored than males.
* Female arowanas may be less aggressive than males.
It's important to note that these are general guidelines and there can be some variation between individual fish. If you are unsure of the sex of your arowana, it is best to consult with an expert.