Hi
Jacob is right, the one in the background is a parosphromenus, – I am pretty sure of that. You cant actually say its not a nagyi, because in subdued coloration nagyi is as black and white striped as all the rest, even the males.
But the other one, not a paro 🙂 .. its a betta of some sort. Interesting species though maybe 🙂 though I am no expert on bettaes