Is it normal?

[aidenb]

Is it normal for a silvers bottom jaw to slightly protrude the top jaw?

 

[Austin]

on some. mine's doesn't but i have seen plenty that do

 

[justonemoretank]

From what I understand, the Arowana is a mouth brooder. The male's bottom jaw is lower than the top in order to accommodate the carrying of young in the mouth. I have also heard that you cannot sex silver Aro's. Obviously, this is in contrast to the above. But, this is what I know.

 

[aidenb]

It didn't have this when young, it just recently got it once it passed 20"

 

[Hao]

yah sumtimes they get it, mines didnt have PLJ til 14"

 

[haynboy8]

mine does to

 

[Schneider]

on some. mine's doesn't but i have seen plenty that do

This also helps these fish snatch prey items from the surface.

 

[feeling2good]

it is not suppose to be normal for silvers to have plj. its just that somewhere along the line plj became very common just like DE. plj is a deformity.