id please with sex and potential?

[aserdar]

Thanks for the comments.
I already bought and paid with this one (2" supposed to be male kml);

 

[BIG_ONE]

Now that picture looks more KML. The first one is plainly a Kamfa looking...nice fish.

 

[Ma12cus504]

it a kml, Male. And it will have big head too

 

[aserdar]

Thanks for the comments. But can I ask how do you identify a kamalau and what is differ from a kamfa?
Thank you.