Help sexing of my apistogramma.

[Ayazad]

I bought three pairs of Apistogramma Allpahuayo black chin. Am I right about this:
Male:

Female:

I also have this female apistogramma atahualpa swimming around. Right?

 

[KenL]

I have never seen that species in the flesh but the first picture looks a female (black central’s) to me and the last picture a young male (developing tail shape).

 

[MacZ]

First is a dominant female, second... likely also female. Last looks a lot like a very young male.

And it's just A. allpahuayo. "Black chin" was the designation until the species was officially scientifically described.

 

[Frank Hättich]

I also have this female apistogramma atahualpa swimming around. Right?

It's a male atahualpa.

 

[MacZ]

It's a male atahualpa.

Frustrating when sexing works but the fish is too young for me to ID the species.

 

[Frank Hättich]

Frustrating when sexing works but the fish is too young for me to ID the species.

Especially if the species has already been mentioned in the original post

 

[MacZ]

I'm hsving a stressful week and only online on my phone. My adhd doesn't make this better

 

[Mike Wise]

I make mistakes all of the time ... just ask my wife!

 

[rasmusW]

It's a male atahualpa.

Sorry, if i hijack the thread. But what makes you say its a male?
I’m curious, because I got two that looks a bit like that and one larger that is 100% male.

-r

 

[KenL]

Sorry, if i hijack the thread. But what makes you say its a male?
I’m curious, because I got two that looks a bit like that and one larger that is 100% male.

-r

Which one is “it”?

 

[rasmusW]

Sorry! It’s the atahualpa, I’m asking about.

-r

 

[Frank Hättich]

Sorry, if i hijack the thread. But what makes you say its a male?
I’m curious, because I got two that looks a bit like that and one larger that is 100% male.

-r

In this case I can't tell you particular features that make me think so, it's just the overall appearance - you can also call it "gut feeling".

 

[Ayazad]

This is my male:

He and the "male" in the photo above are brothers.

 

[Mike Wise]

I must agree with Frank on this. The top fish shows masculine features like extended anterior dorsal spines (higher than a female's), lack of black in the ventral fins, and a more slender profile, typical of a male. My guess is that this is a sneaker male trying to look female to avoid excess aggression from the dominant male. Compare your fish with those on TomC's site: https://www.tomc.no/fish.aspx?fishIndexID=2379&gruppeID=1