The only Apistogramma so far found in the Cano Cristales in Colombia, is Apistogramma cf. alacrina.
The video shows a female of this species.
Here is an example of how variable the black markings can be on these females.
And here is a male of the same species from the same biotope.
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I did not link to my own photos, but photos at Ivan Mikolji's site.....I think it was to pictures from a collection trip you may have made....