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It's A. nijsseni. The males are the more coloful ones without large black blotches on the side of the body and with smaller caudal spots. A male can be seen in the first four pictures.
The first one is a cacatuoides-group species, it can be A. (cf.) cacatuoides, A. sp. Rocafuerte or A. (cf.) luelingi. Please post some photos on which one can clearly see lateral band, caudal spot and abdominal markings. About the second fish I can't say much other than that it's likely a...
First and second picture are male A. sp. Kiemenfleck/Gill-spot (D37). The female in the third picture is a different species, imo A. sp. Alto Vaupes II (D50).
Females are difficult to ID especially from just a single photo and without any other information!
However, in case she is from Peru, my guess would be A. huascar or something closely related. But please show some more photos of her, preferably in different moods, and share any information you...
Since he is just introduced into your tank, colors will likely enhance a bit given that you provide the right conditions (e.g. water parameters, ligthing, food).
Yes it might also be an exceptionally colorful specimen of D33 but the latters catch location is not inside Arauca and more than100km away from Tame and the Rio Tame with at least two other rivers in between.
I have seen similar A. cf. macmasteri with the location label "Arauca". Arauca is a department of Colombia containig the Rio Tame. On the other hand, from Puerto Carreno I only know one macmasteri-subcomplex species, A. sp. D21. And I have never seen any sepcimens of these with such intense red...
So they came in a "Colombia mix" ;-) The problem is that just by their looks alone many hoignei-subcomplex species can't be savely distinguished from one another (at least I'm not able to do so). But since you didn't even ordered them, they will probably not been very expensive and thus not much...
Your fish are cetrainly some form of A. cf. hoignei. Whether they are D47 depends on their catch location in fact being somewhere in the Coconuevo-area. Did they come with other fish from the lower Rio Inirida?