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The photo is not good enough for any kind of identification. The best that I can say is that the fish belong in the regani-lineage, which includes the regani-, alacrina, and macmasteri-groups. That reduces the number of possible species to somewhere over 100.
I think the fish are too small to say for sure. I see signs of male and female. The second photo looks like a male to me, but on the other photo's I think it looks like a female.. How big is this fish?
No, on A. cf. alacrina, but sexes show black pigment on the first 2-3 dorsal spines. The same is true for the top of the dorsal fins on many populations of this species.