Male or female green terror

[Benji k]

So

I don't think I have ever seen a female that small whose dorsal fin started trailing like that.

Also for those that find this thread later:

The orange vs the white trim has nothing to do with gender , just a variation within the species.

are you saying it’s a male

 

[Omrit]

So

are you saying it’s a male

I would say yes.

 

[duanes]

Just a heads up for those who think all individuals of a species should look the same.
All the pics below are of the same species, Andinoacara coerleopunctatus Close Panamanian cousin to the GT.
But all 3 are from different rivers.

The A coerleopunctatus above, is from the Chagres Rive system, neat San Martin.
The one below, is from the Bayano river system about 15 miles away, near Las Margaritas

And the A coerleopuntatus is from the Rio Pedro Miguel (also part of the Chagres system, but on the other side of the valley.

I believe similar differences in GTs from rivers west of the Andes will also be quite common.