Yes, I have seen that video of dicrossus foraging with Wallaciia - nice! Sadly I have never been able to get Dicrossus here.
This is my female when about the same size as yours, at first the ring around the ocellus looked more whitish, later the red became more obvious and the ocellus became double.
And after a few years the ocellus pretty much disappeared. Nothopthalmus only has the red ring and no white on the ocellus, this might be clearer as she matures? The males of nothopthalmus are easy to tell from the Orinoco species, nothopthalmus having the first dorsal fin ray extended, while this is not the case in the Orinoco species.
This is my female when about the same size as yours, at first the ring around the ocellus looked more whitish, later the red became more obvious and the ocellus became double.
And after a few years the ocellus pretty much disappeared. Nothopthalmus only has the red ring and no white on the ocellus, this might be clearer as she matures? The males of nothopthalmus are easy to tell from the Orinoco species, nothopthalmus having the first dorsal fin ray extended, while this is not the case in the Orinoco species.