Some sort of gachua I would say at first look but the stripes on the left one (top pic) threw me a bit. I have no exp of sp.turquoise, are they sub trop or fully tropical? Nice looking channa all the same mate.
nice channa
Interesting that they don't have much of a line on the top of the dorsal, but they do have the feint stripes on the body.
What is supposed to be the difference between the two species?