Agassizii female or sub-dominant male?

[Bartledangit]

Just like the title says, I’m brand new to keeping these fish and don’t know what I’m looking at for the most part….I see a lot of black on the caudal peduncle going on into the caudal fin which is why I ask….any help is greatly appreciated…photo of dominant male for context, they were sold to me as an attempted pair of A.Agassizii cf “tefe blue pearl”

 

[Mike Wise]

Photo are not the greatest, but from what I see I would say that photos #1 & 3 are females. How large are they?

 

[Bartledangit]

Photo are not the greatest, but from what I see I would say that photos #1 & 3 are females. How large are they?

Sorry my phone camera is terrible, Photos 1 and 3 are the same fish I’d say roughly 2 maybe 2.5 inches total length

 

[Mike Wise]

At that size it is almost certainly a female.

 

[Bartledangit]

At that size it is almost certainly a female.

Appreciate it, I’m painfully new haha