Should heal up. Clean water and make sure it’s eating.
I don't have to do anything? Will it just grow back by itself? Do you know how long before it gets back to normal?
Welcome aboard
Nothing but clean pristine water conditions and whatkno4te stated make sure the Aro is eating.
My only concern would be that they are not splits but rather chunks seem to be missing. I've not kept arowana, but in my experience, splits heal really fast, but missing chunks like that heal more slowly or sometimes don't come back.
But as the others have said, with pristine water and good quality food, chances are good that it will recover.
It should heal. Growing back to normal is questionable.Yes that's also my concern. Can somebody confirm that it will heal pls?