Cobra Channa. Please Help teach how to ID which one is Female and which is Male? Thank you!

[ET1984]

Is this Male Golden Cobra?

 

[ET1984]

Is this Female?

 

[gigachat]

you need to flip the fish and check if there's one or 2 holes. (1 hole male and 2 holes female)

 

[Milingu]

you need to flip the fish and check if there's one or 2 holes. (1 hole male and 2 holes female)

That's totally wrong. Both male and female Channa have two holes and they look nearly the same in both sexes.