Can you please help me ID the sex?

[RodsAquatics]

I was told I got a mating pair at the store. I took as many pictures as I could. If you need more please let me know. Thanks in advance.

I couldn't post a video here. I put one on reddit. Here is the link.

https://www.reddit.com/r/apistogramma/s/BZlH8JyAjw

 

[Apistoguy52]

From what I can see…I see two boys

 

[Mike Wise]

So do I - 2 males.

 

[Gamegurl]

Pretty little things, what species is this one?
They sure have picked their spots, seems like the upper fish is more dominant?
I'd be curious which one gets the female when you get one.
Best of luck

 

[MacZ]

A. macmasteri. And it will be the one the owner picks. You don't just add a female to a tank with two males and see what happens. Usually that's a recipe for disaster.